diff --git a/docker/requirements.txt b/docker/requirements.txt
index 385cc3ea..7d484785 100644
--- a/docker/requirements.txt
+++ b/docker/requirements.txt
@@ -13,7 +13,7 @@ googleapis-common-protos==1.51.0
 idna==2.9
 numpy==1.18.2
 pandas==1.0.3
-protobuf==3.11.3
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 python-dateutil==2.8.1