diff --git a/requirements.txt b/requirements.txt
index 4dbe309..0ad4d0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ googleapis-common-protos==1.5.3
 idna==2.7
 jmespath==0.9.3
 kubernetes==6.0.0
-protobuf==3.6.0
+protobuf==3.15.0
 pyasn1==0.4.3
 pyasn1-modules==0.2.2
 python-dateutil==2.7.3