diff --git a/articles/keras-weight-transfer/neural-net/requirements.txt b/articles/keras-weight-transfer/neural-net/requirements.txt
index ce9ac2e..1ddfabb 100644
--- a/articles/keras-weight-transfer/neural-net/requirements.txt
+++ b/articles/keras-weight-transfer/neural-net/requirements.txt
@@ -1,6 +1,6 @@
 absl-py==0.1.10
 astor==0.6.2
-bleach==1.5.0
+bleach==3.3.0
 gast==0.2.0
 grpcio==1.10.0
 h5py==2.7.1