diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3a608d8f..1446baf1 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,9 +1,9 @@
-mkdocs==1.2.3
-mkdocs-material==8.2.7
-pymdown-extensions==9.3
-mkdocs-git-revision-date-localized-plugin==1.0.0
-mkdocs-awesome-pages-plugin==2.7.0
-mdx_truly_sane_lists==1.2 # https://github.com/radude/mdx_truly_sane_lists
-mkdocs-include-markdown-plugin==3.3.0 # https://github.com/mondeja/mkdocs-include-markdown-plugin
+mkdocs==1.3.1
+mkdocs-material==8.3.9
+pymdown-extensions==9.5
+mkdocs-git-revision-date-localized-plugin==1.1.0
+mkdocs-awesome-pages-plugin==2.8.0
+mdx_truly_sane_lists==1.3 # https://github.com/radude/mdx_truly_sane_lists
+mkdocs-include-markdown-plugin==3.6.1 # https://github.com/mondeja/mkdocs-include-markdown-plugin
 mike==1.1.2 # versioned docs: https://github.com/jimporter/mike
 
diff --git a/mkdocs.yml b/mkdocs.yml
index becb078e..a8338877 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -57,7 +57,8 @@ markdown_extensions:
   - toc:
       permalink: true
   - admonition # https://squidfunk.github.io/mkdocs-material/extensions/admonition/
-  - codehilite # https://squidfunk.github.io/mkdocs-material/extensions/codehilite/
+  - pymdownx.highlight: # https://squidfunk.github.io/mkdocs-material/setup/extensions/python-markdown-extensions/#highlight
+      use_pygments: true
   - pymdownx.inlinehilite # https://squidfunk.github.io/mkdocs-material/extensions/pymdown/#inlinehilite
   - pymdownx.superfences # https://squidfunk.github.io/mkdocs-material/extensions/pymdown/#superfences
   - pymdownx.tabbed # https://squidfunk.github.io/mkdocs-material/extensions/pymdown/#tabbed