diff --git a/requirements.txt b/requirements.txt
index 38da79c..c48acf1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ luigi==3.0.0
 marbles==0.11.0
 marbles.core==0.11.0
 marbles.mixins==0.11.0
-markdown2==2.3.5
+markdown2==2.4.0
 MarkupSafe==1.1.1
 matplotlib==3.2.1
 numpy==1.18.4