diff --git a/functions/import-stats/requirements.txt b/functions/import-stats/requirements.txt
index f06b2dc..89e18f3 100644
--- a/functions/import-stats/requirements.txt
+++ b/functions/import-stats/requirements.txt
@@ -8,7 +8,7 @@ google-cloud-core==1.0.2
 google-resumable-media==0.3.2
 googleapis-common-protos==1.6.0
 idna==2.8
-protobuf==3.8.0
+protobuf==3.18.3
 pyasn1==0.4.5
 pyasn1-modules==0.2.5
 pytz==2019.1