diff --git a/training/requirements.txt b/training/requirements.txt
index 49bd5a1..baead1b 100644
--- a/training/requirements.txt
+++ b/training/requirements.txt
@@ -8,7 +8,7 @@ Keras-Applications==1.0.6
 Keras-Preprocessing==1.0.5
 Markdown==3.0.1
 numpy==1.15.1
-protobuf==3.6.1
+protobuf==3.15.0
 pyyaml>=4.2b1
 scipy==1.2.0
 six==1.11.0