diff --git a/models/pyflask/requirements.txt b/models/pyflask/requirements.txt
index 629c6e8..aa0cab5 100644
--- a/models/pyflask/requirements.txt
+++ b/models/pyflask/requirements.txt
@@ -60,7 +60,7 @@ scipy
 six==1.15.0
 tensorboard==2.2.1
 tensorboard-plugin-wit
-tensorflow==2.2.0
+tensorflow==2.3.1
 tensorflow-estimator==2.2.0
 termcolor==1.1.0
 torch==1.6.0