diff --git a/requirements.txt b/requirements.txt
index de36a1a..1cda31c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ rsa==4.0
 scipy==1.4.1
 six==1.14.0
 tensorboard==1.14.0
-tensorflow==1.15.2
+tensorflow==1.15.4
 tensorflow-estimator==1.14.0
 termcolor==1.1.0
 urllib3==1.25.8