diff --git a/requirements.txt b/requirements.txt
index ce88daa9d..a757dee81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,6 @@
 # Direct dependencies
 mkdocs>=1.1
 Pygments>=2.4
-markdown>=3.2
+markdown>=3.2,<3.3
 pymdown-extensions>=7.0
 mkdocs-material-extensions>=1.0