diff --git a/ga_base/requirements.txt b/ga_base/requirements.txt
index 4e53659..fc69c7a 100644
--- a/ga_base/requirements.txt
+++ b/ga_base/requirements.txt
@@ -48,7 +48,7 @@ numericalunits==1.13
 numexpr==2.2.2
 oauthlib==0.6.0
 paramiko==1.12.0
-protobuf==2.5.0
+protobuf==3.18.3
 psycopg2==2.5.1
 pyasn1==0.1.7
 pycrypto==2.6.1