diff --git a/examples/notebooks/tf_2_2/requirements.txt b/examples/notebooks/tf_2_2/requirements.txt
index bd0cf5f..19ec9cf 100644
--- a/examples/notebooks/tf_2_2/requirements.txt
+++ b/examples/notebooks/tf_2_2/requirements.txt
@@ -37,7 +37,7 @@ matplotlib==3.2.1
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.1.5
+notebook==6.4.12
 numpy==1.18.4
 oauthlib==3.1.0
 opt-einsum==3.2.1