diff --git a/requirements.txt b/requirements.txt
index 7f19f18..32dfa74 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 mkdocs>=0.17.5
 mkdocs-material==2.9.4 
 pymdown-extensions
+Markdown==2.6.11