diff --git a/requirements.txt b/requirements.txt
index 04e9709..2e2f23a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -110,7 +110,7 @@ pretrainedmodels==0.7.4
 progress==1.5
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.13.0
+protobuf==3.15.0
 psutil==5.4.7
 ptyprocess==0.5
 py-rouge==1.1