diff --git a/requirements.txt b/requirements.txt
index afa8b79..673b1dc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -62,7 +62,7 @@ Pillow==8.0.0
 pkg-resources==0.0.0
 prometheus-client==0.8.0
 prompt-toolkit==3.0.8
-protobuf==3.13.0
+protobuf==3.15.0
 ptyprocess==0.6.0
 pycparser==2.20
 Pygments==2.7.1