diff --git a/SentinelAI-Graham/Walabot/requirements.txt b/SentinelAI-Graham/Walabot/requirements.txt
index 2c1770fd..56d97369 100644
--- a/SentinelAI-Graham/Walabot/requirements.txt
+++ b/SentinelAI-Graham/Walabot/requirements.txt
@@ -29,7 +29,7 @@ lazy-object-proxy==1.3.1
 MarkupSafe==1.0
 matplotlib==2.2.2
 mccabe==0.6.1
-mistune==0.8.3
+mistune==2.0.3
 nbconvert==5.3.1
 nbformat==4.4.0
 numpy==1.15.0