diff --git a/requirements.txt b/requirements.txt
index 97fa077..38a2800 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-mkdocs
-mkdocs-material
-mkdocs-material-extensions
-mkdocs-minify-plugin
-mkdocs-git-revision-date-plugin
-pymdown-extensions
+mkdocs==1.3.0
+mkdocs-material==8.2.10
+mkdocs-material-extensions==1.0.3
+mkdocs-minify-plugin==0.5.0
+mkdocs-git-revision-date-plugin==0.3.2
+pymdown-extensions==9.3