diff --git a/library/ecdh.c b/library/ecdh.c
index 2007e16..9f002d9 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -20,7 +20,7 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  * RFC 4492
  */
 
diff --git a/library/ecdsa.c b/library/ecdsa.c
index 42a65dc..1f0b37d 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -20,7 +20,7 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  */
 
 #include "common.h"
diff --git a/library/ecp.c b/library/ecp.c
index 9051490..2d80b6f 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -20,13 +20,15 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  * GECC = Guide to Elliptic Curve Cryptography - Hankerson, Menezes, Vanstone
  * FIPS 186-3 http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf
  * RFC 4492 for the related TLS structures and constants
+ * - https://www.rfc-editor.org/rfc/rfc4492
  * RFC 7748 for the Curve448 and Curve25519 curve definitions
+ * - https://www.rfc-editor.org/rfc/rfc7748
  *
- * [Curve25519] http://cr.yp.to/ecdh/curve25519-20060209.pdf
+ * [Curve25519] https://cr.yp.to/ecdh/curve25519-20060209.pdf
  *
  * [2] CORON, Jean-S'ebastien. Resistance against differential power analysis
  *     for elliptic curve cryptosystems. In : Cryptographic Hardware and
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index aad1bf2..03cc2ff 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -2428,7 +2428,7 @@
 aead_encrypt_decrypt:PSA_KEY_TYPE_AES:"D7828D13B2B0BDC325A76236DF93CC6B":PSA_ALG_CTR:"000102030405060708090A0B0C0D0E0F":"":"":PSA_ERROR_NOT_SUPPORTED
 
 PSA AEAD encrypt/decrypt: invalid algorithm (ChaCha20)
-depends_on:MBEDTLS_CHACHA20_C
+depends_on:PSA_WANT_KEY_TYPE_CHACHA20
 aead_encrypt_decrypt:PSA_KEY_TYPE_CHACHA20:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":PSA_ALG_STREAM_CIPHER:"":"":"":PSA_ERROR_NOT_SUPPORTED
 
 PSA signature size: RSA keypair, 1024 bits, PKCS#1 v1.5 raw