diff --git a/architecture/spmc.rst b/architecture/spmc.rst
index 7fed9eb..7ab9c58 100644
--- a/architecture/spmc.rst
+++ b/architecture/spmc.rst
@@ -286,10 +286,10 @@
 FF-A compliance
 ===============
 
-.. |ffa_fs| replace:: :opticon:`check-circle-fill`
-.. |ffa_ps| replace:: :opticon:`check-circle`
-.. |ffa_ns| replace:: :opticon:`x`
-.. |ffa_na| replace:: :opticon:`horizontal-rule`
+.. |ffa_fs| replace:: :octicon:`check-circle-fill`
+.. |ffa_ps| replace:: :octicon:`check-circle`
+.. |ffa_ns| replace:: :octicon:`x`
+.. |ffa_na| replace:: :octicon:`horizontal-rule`
 
 Legend
 ------
diff --git a/conf.py b/conf.py
index b511d04..7724194 100644
--- a/conf.py
+++ b/conf.py
@@ -42,7 +42,7 @@
     'sphinx.ext.todo',
     'sphinx.ext.viewcode',
     'sphinx.ext.graphviz',
-    'sphinx_panels',
+    'sphinx_design',
     'sphinxcontrib.plantuml',
     'sphinx_tabs.tabs',
 ]
diff --git a/requirements.txt b/requirements.txt
index 0e80680..11a683d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-sphinx-rtd-theme
-sphinxcontrib-plantuml==0.24
-Pillow==9.3.0
-sphinx-tabs
-sphinx-panels==0.6.0
-sphinx==4.5.0
+pillow==10.2.0 
+Sphinx==7.2.6
+sphinxcontrib-plantuml==0.27
+sphinx_design==0.5.0
+sphinx-rtd-theme==2.0.0
+sphinx-tabs==3.4.4