diff --git a/requirements.txt b/requirements.txt
index 31b4600..727a4d8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -96,7 +96,7 @@ Pillow==8.2.0
 pkginfo==1.5.0.1
 prometheus-client==0.7.1
 prompt-toolkit==3.0.4
-protobuf==3.11.4
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7
 pycparser==2.20