diff --git a/requirements.txt b/requirements.txt
index 5a207d0..308e939 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ pickleshare==0.7.5
 Pillow==8.1.1
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
-protobuf==3.7.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 Pygments==2.7.4
 pyparsing==2.3.1