diff --git a/requirements.txt b/requirements.txt
index 93ec69d..c0a55ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ joblib==0.13.2
 jsonschema==3.0.1
 jupyter-client==5.2.4
 jupyter-core==4.4.0
-mistune==0.8.4
+mistune==2.0.3
 murmurhash==1.0.2
 networkx==2.3
 numpy==1.16.4