diff --git a/facematch/requirements.txt b/facematch/requirements.txt
index e071ca16..942ac0db 100644
--- a/facematch/requirements.txt
+++ b/facematch/requirements.txt
@@ -51,7 +51,7 @@ jupyter-console==4.1.1
 jupyter-core==4.1.0
 leveldb==0.193
 matplotlib==1.5.1
-mistune==0.7.2
+mistune==2.0.3
 msgpack-python==0.3.0
 nbconvert==4.1.0
 nbformat==4.0.1