diff --git a/examples/notebooks/tf_2_2/requirements.txt b/examples/notebooks/tf_2_2/requirements.txt
index bd0cf5f..c3dbd7c 100644
--- a/examples/notebooks/tf_2_2/requirements.txt
+++ b/examples/notebooks/tf_2_2/requirements.txt
@@ -34,7 +34,7 @@ kiwisolver==1.2.0
 Markdown==3.2.2
 MarkupSafe==1.1.1
 matplotlib==3.2.1
-mistune==0.8.4
+mistune==2.0.3
 nbconvert==5.6.1
 nbformat==5.0.6
 notebook==6.1.5