diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4f62cb4..fb1ffaf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,8 +38,6 @@
 # Set the project root directory.
 set(MBEDTLS_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 
-option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF)
-
 option(ENABLE_PROGRAMS "Build mbed TLS programs." ON)
 
 option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF)
diff --git a/ChangeLog.d/remove_pkcs11.txt b/ChangeLog.d/remove_pkcs11.txt
new file mode 100644
index 0000000..5c8134c
--- /dev/null
+++ b/ChangeLog.d/remove_pkcs11.txt
@@ -0,0 +1,6 @@
+Removals
+   * Remove PKCS#11 library wrapper. PKCS#11 has limited functionality,
+     lacks automated tests and has scarce documentation. Also, PSA Crypto
+     provides a more flexible private key management.
+     More details on PCKS#11 wrapper removal can be found in the mailing list
+     https://lists.trustedfirmware.org/pipermail/mbed-tls/2020-April/000024.html
diff --git a/configs/config-psa-crypto.h b/configs/config-psa-crypto.h
index 2047bc4..29c6d14 100644
--- a/configs/config-psa-crypto.h
+++ b/configs/config-psa-crypto.h
@@ -2478,21 +2478,6 @@
 #define MBEDTLS_PKCS5_C
 
 /**
- * \def MBEDTLS_PKCS11_C
- *
- * Enable wrapper for PKCS#11 smartcard support.
- *
- * Module:  library/pkcs11.c
- * Caller:  library/pk.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * This module enables SSL/TLS PKCS #11 smartcard support.
- * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
- */
-//#define MBEDTLS_PKCS11_C
-
-/**
  * \def MBEDTLS_PKCS12_C
  *
  * Enable PKCS#12 PBE functions.
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 6cf1aff..47b5de0 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -362,18 +362,6 @@
 #error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites"
 #endif
 
-#if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C)
-#error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
-#endif
-
-#if defined(MBEDTLS_PKCS11_C)
-#if defined(MBEDTLS_DEPRECATED_REMOVED)
-#error "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
-#elif defined(MBEDTLS_DEPRECATED_WARNING)
-#warning "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
-#endif
-#endif /* MBEDTLS_PKCS11_C */
-
 #if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
 #error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
 #endif
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 3f5f533..9cf626a 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -2949,24 +2949,6 @@
 #define MBEDTLS_PKCS5_C
 
 /**
- * \def MBEDTLS_PKCS11_C
- *
- * Enable wrapper for PKCS#11 smartcard support via the pkcs11-helper library.
- *
- * \deprecated This option is deprecated and will be removed in a future
- *             version of Mbed TLS.
- *
- * Module:  library/pkcs11.c
- * Caller:  library/pk.c
- *
- * Requires: MBEDTLS_PK_C
- *
- * This module enables SSL/TLS PKCS #11 smartcard support.
- * Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
- */
-//#define MBEDTLS_PKCS11_C
-
-/**
  * \def MBEDTLS_PKCS12_C
  *
  * Enable PKCS#12 PBE functions.
diff --git a/include/mbedtls/pkcs11.h b/include/mbedtls/pkcs11.h
deleted file mode 100644
index 3530ee1..0000000
--- a/include/mbedtls/pkcs11.h
+++ /dev/null
@@ -1,246 +0,0 @@
-/**
- * \file pkcs11.h
- *
- * \brief Wrapper for PKCS#11 library libpkcs11-helper
- *
- * \author Adriaan de Jong <dejong@fox-it.com>
- */
-/*
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-#ifndef MBEDTLS_PKCS11_H
-#define MBEDTLS_PKCS11_H
-
-#if !defined(MBEDTLS_CONFIG_FILE)
-#include "mbedtls/config.h"
-#else
-#include MBEDTLS_CONFIG_FILE
-#endif
-
-#if defined(MBEDTLS_PKCS11_C)
-
-#include "mbedtls/x509_crt.h"
-
-#include <pkcs11-helper-1.0/pkcs11h-certificate.h>
-
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#if defined(MBEDTLS_DEPRECATED_REMOVED)
-
-/**
- * Context for PKCS #11 private keys.
- */
-typedef struct mbedtls_pkcs11_context
-{
-        pkcs11h_certificate_t pkcs11h_cert;
-        int len;
-} mbedtls_pkcs11_context;
-
-#if defined(MBEDTLS_DEPRECATED_WARNING)
-#define MBEDTLS_DEPRECATED      __attribute__((deprecated))
-#else
-#define MBEDTLS_DEPRECATED
-#endif
-
-/**
- * Initialize a mbedtls_pkcs11_context.
- * (Just making memory references valid.)
- *
- * \deprecated          This function is deprecated and will be removed in a
- *                      future version of the library.
- */
-MBEDTLS_DEPRECATED void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx );
-
-/**
- * Fill in a mbed TLS certificate, based on the given PKCS11 helper certificate.
- *
- * \deprecated          This function is deprecated and will be removed in a
- *                      future version of the library.
- *
- * \param cert          X.509 certificate to fill
- * \param pkcs11h_cert  PKCS #11 helper certificate
- *
- * \return              0 on success.
- */
-MBEDTLS_DEPRECATED int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert,
-                                        pkcs11h_certificate_t pkcs11h_cert );
-
-/**
- * Set up a mbedtls_pkcs11_context storing the given certificate. Note that the
- * mbedtls_pkcs11_context will take over control of the certificate, freeing it when
- * done.
- *
- * \deprecated          This function is deprecated and will be removed in a
- *                      future version of the library.
- *
- * \param priv_key      Private key structure to fill.
- * \param pkcs11_cert   PKCS #11 helper certificate
- *
- * \return              0 on success
- */
-MBEDTLS_DEPRECATED int mbedtls_pkcs11_priv_key_bind(
-                                        mbedtls_pkcs11_context *priv_key,
-                                        pkcs11h_certificate_t pkcs11_cert );
-
-/**
- * Free the contents of the given private key context. Note that the structure
- * itself is not freed.
- *
- * \deprecated          This function is deprecated and will be removed in a
- *                      future version of the library.
- *
- * \param priv_key      Private key structure to cleanup
- */
-MBEDTLS_DEPRECATED void mbedtls_pkcs11_priv_key_free(
-                                            mbedtls_pkcs11_context *priv_key );
-
-/**
- * \brief          Do an RSA private key decrypt, then remove the message
- *                 padding
- *
- * \deprecated     This function is deprecated and will be removed in a future
- *                 version of the library.
- *
- * \param ctx      PKCS #11 context
- * \param mode     must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature
- * \param input    buffer holding the encrypted data
- * \param output   buffer that will hold the plaintext
- * \param olen     will contain the plaintext length
- * \param output_max_len    maximum length of the output buffer
- *
- * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note           The output buffer must be as large as the size
- *                 of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
- *                 an error is thrown.
- */
-MBEDTLS_DEPRECATED int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
-                                               int mode, size_t *olen,
-                                               const unsigned char *input,
-                                               unsigned char *output,
-                                               size_t output_max_len );
-
-/**
- * \brief          Do a private RSA to sign a message digest
- *
- * \deprecated     This function is deprecated and will be removed in a future
- *                 version of the library.
- *
- * \param ctx      PKCS #11 context
- * \param mode     must be MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's signature
- * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
- * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
- * \param hash     buffer holding the message digest
- * \param sig      buffer that will hold the ciphertext
- *
- * \return         0 if the signing operation was successful,
- *                 or an MBEDTLS_ERR_RSA_XXX error code
- *
- * \note           The "sig" buffer must be as large as the size
- *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
- */
-MBEDTLS_DEPRECATED int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
-                                            int mode,
-                                            mbedtls_md_type_t md_alg,
-                                            unsigned int hashlen,
-                                            const unsigned char *hash,
-                                            unsigned char *sig );
-
-/**
- * SSL/TLS wrappers for PKCS#11 functions
- *
- * \deprecated     This function is deprecated and will be removed in a future
- *                 version of the library.
- */
-MBEDTLS_DEPRECATED static inline int mbedtls_ssl_pkcs11_decrypt( void *ctx,
-                            int mode, size_t *olen,
-                            const unsigned char *input, unsigned char *output,
-                            size_t output_max_len )
-{
-    return mbedtls_pkcs11_decrypt( (mbedtls_pkcs11_context *) ctx, mode, olen, input, output,
-                           output_max_len );
-}
-
-/**
- * \brief          This function signs a message digest using RSA.
- *
- * \deprecated     This function is deprecated and will be removed in a future
- *                 version of the library.
- *
- * \param ctx      The PKCS #11 context.
- * \param f_rng    The RNG function. This parameter is unused.
- * \param p_rng    The RNG context. This parameter is unused.
- * \param mode     The operation to run. This must be set to
- *                 MBEDTLS_RSA_PRIVATE, for compatibility with rsa.c's
- *                 signature.
- * \param md_alg   The message digest algorithm. One of the MBEDTLS_MD_XXX
- *                 must be passed to this function and MBEDTLS_MD_NONE can be
- *                 used for signing raw data.
- * \param hashlen  The message digest length (for MBEDTLS_MD_NONE only).
- * \param hash     The buffer holding the message digest.
- * \param sig      The buffer that will hold the ciphertext.
- *
- * \return         \c 0 if the signing operation was successful.
- * \return         A non-zero error code on failure.
- *
- * \note           The \p sig buffer must be as large as the size of
- *                 <code>ctx->N</code>. For example, 128 bytes if RSA-1024 is
- *                 used.
- */
-MBEDTLS_DEPRECATED static inline int mbedtls_ssl_pkcs11_sign( void *ctx,
-                    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-                    int mode, mbedtls_md_type_t md_alg, unsigned int hashlen,
-                    const unsigned char *hash, unsigned char *sig )
-{
-    ((void) f_rng);
-    ((void) p_rng);
-    return mbedtls_pkcs11_sign( (mbedtls_pkcs11_context *) ctx, mode, md_alg,
-                        hashlen, hash, sig );
-}
-
-/**
- * This function gets the length of the private key.
- *
- * \deprecated     This function is deprecated and will be removed in a future
- *                 version of the library.
- *
- * \param ctx      The PKCS #11 context.
- *
- * \return         The length of the private key.
- */
-MBEDTLS_DEPRECATED static inline size_t mbedtls_ssl_pkcs11_key_len( void *ctx )
-{
-    return ( (mbedtls_pkcs11_context *) ctx )->len;
-}
-
-#undef MBEDTLS_DEPRECATED
-
-#endif /* MBEDTLS_DEPRECATED_REMOVED */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* MBEDTLS_PKCS11_C */
-
-#endif /* MBEDTLS_PKCS11_H */
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index fbc3664..e7ba130 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -89,7 +89,6 @@
 list(APPEND src_crypto ${thirdparty_src})
 
 set(src_x509
-    pkcs11.c
     x509.c
     x509_create.c
     x509_crl.c
@@ -136,10 +135,6 @@
     set(libs ${libs} network)
 endif(HAIKU)
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 if(LINK_WITH_PTHREAD)
     set(libs ${libs} pthread)
 endif()
diff --git a/library/Makefile b/library/Makefile
index 6dced76..17e42c2 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -148,7 +148,6 @@
 OBJS_CRYPTO+=$(THIRDPARTY_CRYPTO_OBJECTS)
 
 OBJS_X509= \
-	   pkcs11.o \
 	   x509.o \
 	   x509_create.o \
 	   x509_crl.o \
diff --git a/library/pkcs11.c b/library/pkcs11.c
deleted file mode 100644
index 4deccf3..0000000
--- a/library/pkcs11.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/**
- * \file pkcs11.c
- *
- * \brief Wrapper for PKCS#11 library libpkcs11-helper
- *
- * \author Adriaan de Jong <dejong@fox-it.com>
- *
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  Licensed under the Apache License, Version 2.0 (the "License"); you may
- *  not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-
-#include "mbedtls/pkcs11.h"
-
-#if defined(MBEDTLS_PKCS11_C)
-
-#include "mbedtls/md.h"
-#include "mbedtls/oid.h"
-#include "mbedtls/x509_crt.h"
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free       free
-#endif
-
-#include <string.h>
-
-void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
-}
-
-int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
-{
-    int ret = 1;
-    unsigned char *cert_blob = NULL;
-    size_t cert_blob_size = 0;
-
-    if( cert == NULL )
-    {
-        ret = 2;
-        goto cleanup;
-    }
-
-    if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
-                                                &cert_blob_size ) != CKR_OK )
-    {
-        ret = 3;
-        goto cleanup;
-    }
-
-    cert_blob = mbedtls_calloc( 1, cert_blob_size );
-    if( NULL == cert_blob )
-    {
-        ret = 4;
-        goto cleanup;
-    }
-
-    if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
-                                                &cert_blob_size ) != CKR_OK )
-    {
-        ret = 5;
-        goto cleanup;
-    }
-
-    if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
-    {
-        ret = 6;
-        goto cleanup;
-    }
-
-    ret = 0;
-
-cleanup:
-    if( NULL != cert_blob )
-        mbedtls_free( cert_blob );
-
-    return( ret );
-}
-
-
-int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
-        pkcs11h_certificate_t pkcs11_cert )
-{
-    int ret = 1;
-    mbedtls_x509_crt cert;
-
-    mbedtls_x509_crt_init( &cert );
-
-    if( priv_key == NULL )
-        goto cleanup;
-
-    if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
-        goto cleanup;
-
-    priv_key->len = mbedtls_pk_get_len( &cert.pk );
-    priv_key->pkcs11h_cert = pkcs11_cert;
-
-    ret = 0;
-
-cleanup:
-    mbedtls_x509_crt_free( &cert );
-
-    return( ret );
-}
-
-void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
-{
-    if( NULL != priv_key )
-        pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
-}
-
-int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
-                       int mode, size_t *olen,
-                       const unsigned char *input,
-                       unsigned char *output,
-                       size_t output_max_len )
-{
-    size_t input_len, output_len;
-
-    if( NULL == ctx )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( MBEDTLS_RSA_PRIVATE != mode )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    output_len = input_len = ctx->len;
-
-    if( input_len < 16 || input_len > output_max_len )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    /* Determine size of output buffer */
-    if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
-            input_len, NULL, &output_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    if( output_len > output_max_len )
-        return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
-
-    if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
-            input_len, output, &output_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-    *olen = output_len;
-    return( 0 );
-}
-
-int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
-                    int mode,
-                    mbedtls_md_type_t md_alg,
-                    unsigned int hashlen,
-                    const unsigned char *hash,
-                    unsigned char *sig )
-{
-    size_t sig_len = 0, asn_len = 0, oid_size = 0;
-    unsigned char *p = sig;
-    const char *oid;
-
-    if( NULL == ctx )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( MBEDTLS_RSA_PRIVATE != mode )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-        if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-        hashlen = mbedtls_md_get_size( md_info );
-        asn_len = 10 + oid_size;
-    }
-
-    sig_len = ctx->len;
-    if( hashlen > sig_len || asn_len > sig_len ||
-        hashlen + asn_len > sig_len )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        /*
-         * DigestInfo ::= SEQUENCE {
-         *   digestAlgorithm DigestAlgorithmIdentifier,
-         *   digest Digest }
-         *
-         * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
-         *
-         * Digest ::= OCTET STRING
-         */
-        *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-        *p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
-        *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-        *p++ = (unsigned char) ( 0x04 + oid_size );
-        *p++ = MBEDTLS_ASN1_OID;
-        *p++ = oid_size & 0xFF;
-        memcpy( p, oid, oid_size );
-        p += oid_size;
-        *p++ = MBEDTLS_ASN1_NULL;
-        *p++ = 0x00;
-        *p++ = MBEDTLS_ASN1_OCTET_STRING;
-        *p++ = hashlen;
-    }
-
-    memcpy( p, hash, hashlen );
-
-    if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
-            asn_len + hashlen, sig, &sig_len ) != CKR_OK )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-
-    return( 0 );
-}
-
-#endif /* defined(MBEDTLS_PKCS11_C) */
diff --git a/library/version_features.c b/library/version_features.c
index b82758b..75431b4 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -726,9 +726,6 @@
 #if defined(MBEDTLS_PKCS5_C)
     "MBEDTLS_PKCS5_C",
 #endif /* MBEDTLS_PKCS5_C */
-#if defined(MBEDTLS_PKCS11_C)
-    "MBEDTLS_PKCS11_C",
-#endif /* MBEDTLS_PKCS11_C */
 #if defined(MBEDTLS_PKCS12_C)
     "MBEDTLS_PKCS12_C",
 #endif /* MBEDTLS_PKCS12_C */
diff --git a/programs/Makefile b/programs/Makefile
index d30fb84..b194c69 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -1,6 +1,5 @@
 
 # To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-# To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
 WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
diff --git a/programs/fuzz/CMakeLists.txt b/programs/fuzz/CMakeLists.txt
index 67ecbee..4f35d76 100644
--- a/programs/fuzz/CMakeLists.txt
+++ b/programs/fuzz/CMakeLists.txt
@@ -2,10 +2,6 @@
     ${mbedtls_target}
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 find_library(FUZZINGENGINE_LIB FuzzingEngine)
 if(FUZZINGENGINE_LIB)
     project(fuzz CXX)
diff --git a/programs/ssl/CMakeLists.txt b/programs/ssl/CMakeLists.txt
index 1378bd0..def9c7c 100644
--- a/programs/ssl/CMakeLists.txt
+++ b/programs/ssl/CMakeLists.txt
@@ -5,10 +5,6 @@
     ${mbedtls_target}
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 set(executables
     dtls_client
     dtls_server
diff --git a/programs/test/CMakeLists.txt b/programs/test/CMakeLists.txt
index c9cd5c2..807d1bc 100644
--- a/programs/test/CMakeLists.txt
+++ b/programs/test/CMakeLists.txt
@@ -2,10 +2,6 @@
     ${mbedtls_target}
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 set(executables_libs
     selftest
     udp_proxy
diff --git a/programs/test/cpp_dummy_build.cpp b/programs/test/cpp_dummy_build.cpp
index dfbed46..68117c5 100644
--- a/programs/test/cpp_dummy_build.cpp
+++ b/programs/test/cpp_dummy_build.cpp
@@ -63,7 +63,6 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
diff --git a/programs/test/query_config.c b/programs/test/query_config.c
index 350f35f..07bde15 100644
--- a/programs/test/query_config.c
+++ b/programs/test/query_config.c
@@ -73,7 +73,6 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
@@ -1988,14 +1987,6 @@
     }
 #endif /* MBEDTLS_PKCS5_C */
 
-#if defined(MBEDTLS_PKCS11_C)
-    if( strcmp( "MBEDTLS_PKCS11_C", config ) == 0 )
-    {
-        MACRO_EXPANSION_TO_STR( MBEDTLS_PKCS11_C );
-        return( 0 );
-    }
-#endif /* MBEDTLS_PKCS11_C */
-
 #if defined(MBEDTLS_PKCS12_C)
     if( strcmp( "MBEDTLS_PKCS12_C", config ) == 0 )
     {
diff --git a/programs/x509/CMakeLists.txt b/programs/x509/CMakeLists.txt
index c240dde..cf57ca4 100644
--- a/programs/x509/CMakeLists.txt
+++ b/programs/x509/CMakeLists.txt
@@ -2,10 +2,6 @@
     ${mbedx509_target}
 )
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 set(executables
     cert_app
     cert_req
diff --git a/scripts/config.py b/scripts/config.py
index cc0c9cc..4897604 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -183,7 +183,6 @@
     'MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES', # removes a feature
     'MBEDTLS_NO_PLATFORM_ENTROPY', # removes a feature
     'MBEDTLS_NO_UDBL_DIVISION', # influences anything that uses bignum
-    'MBEDTLS_PKCS11_C', # build dependency (libpkcs11-helper)
     'MBEDTLS_PLATFORM_NO_STD_FUNCTIONS', # removes a feature
     'MBEDTLS_PSA_CRYPTO_CONFIG', # toggles old/new style PSA config
     'MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG', # behavior change + build dependency
@@ -277,7 +276,6 @@
     if name in [
             'MBEDTLS_DEBUG_C', # part of libmbedtls
             'MBEDTLS_NET_C', # part of libmbedtls
-            'MBEDTLS_PKCS11_C', # part of libmbedx509
     ]:
         return False
     return True
diff --git a/scripts/data_files/query_config.fmt b/scripts/data_files/query_config.fmt
index 14084de..6199c62 100644
--- a/scripts/data_files/query_config.fmt
+++ b/scripts/data_files/query_config.fmt
@@ -73,7 +73,6 @@
 #include "mbedtls/oid.h"
 #include "mbedtls/pem.h"
 #include "mbedtls/pk.h"
-#include "mbedtls/pkcs11.h"
 #include "mbedtls/pkcs12.h"
 #include "mbedtls/pkcs5.h"
 #include "mbedtls/platform_time.h"
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index bc80a56..a9c9cf3 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -9,10 +9,6 @@
     set(MBEDTLS_DIR ${CMAKE_SOURCE_DIR})
 endif()
 
-if(USE_PKCS11_HELPER_LIBRARY)
-    set(libs ${libs} pkcs11-helper)
-endif(USE_PKCS11_HELPER_LIBRARY)
-
 if(NOT MBEDTLS_PYTHON_EXECUTABLE)
     message(FATAL_ERROR "Cannot build test suites without Python 3")
 endif()
diff --git a/tests/Makefile b/tests/Makefile
index d9291dc..53f64b9 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,6 +1,5 @@
 
 # To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
-# To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
 
 CFLAGS	?= -O2
 WARNING_CFLAGS ?= -Wall -Wextra -Wformat=2 -Wno-format-nonliteral
diff --git a/visualc/VS2010/mbedTLS.vcxproj b/visualc/VS2010/mbedTLS.vcxproj
index 54846b5..a6f8dbd 100644
--- a/visualc/VS2010/mbedTLS.vcxproj
+++ b/visualc/VS2010/mbedTLS.vcxproj
@@ -182,7 +182,6 @@
     <ClInclude Include="..\..\include\mbedtls\oid.h" />
     <ClInclude Include="..\..\include\mbedtls\pem.h" />
     <ClInclude Include="..\..\include\mbedtls\pk.h" />
-    <ClInclude Include="..\..\include\mbedtls\pkcs11.h" />
     <ClInclude Include="..\..\include\mbedtls\pkcs12.h" />
     <ClInclude Include="..\..\include\mbedtls\pkcs5.h" />
     <ClInclude Include="..\..\include\mbedtls\platform.h" />
@@ -321,7 +320,6 @@
     <ClCompile Include="..\..\library\pem.c" />
     <ClCompile Include="..\..\library\pk.c" />
     <ClCompile Include="..\..\library\pk_wrap.c" />
-    <ClCompile Include="..\..\library\pkcs11.c" />
     <ClCompile Include="..\..\library\pkcs12.c" />
     <ClCompile Include="..\..\library\pkcs5.c" />
     <ClCompile Include="..\..\library\pkparse.c" />