diff --git a/requirements.txt b/requirements.txt
index 0094f1d..96c34d8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ nodeenv==1.3.4
 oauthlib==3.1.0
 pre-commit==1.18.3
 promise==2.2.1
-protobuf==3.11.3
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PySocks==1.7.0