diff --git a/requirements.txt b/requirements.txt
index 4022f5ceeb..55511251aa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
-mkdocs
-mkdocs-git-revision-date-localized-plugin
-mkdocs-glightbox
-mkdocs-material
-pymdown-extensions
+mkdocs==1.5.3
+mkdocs-git-revision-date-localized-plugin==1.2.2
+mkdocs-glightbox==0.3.6
+mkdocs-material==9.5.4
+mkdocs-material-extensions==1.3.1
+pymdown-extensions==10.7
 Jinja2>=2.11.1