diff --git a/python/requirements.txt b/python/requirements.txt
index 1ee6153..cd4fa33 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -23,7 +23,7 @@ numpy==1.18.2
 oauthlib==3.1.0
 opt-einsum==3.2.0
 pandas==1.0.3
-protobuf==3.11.3
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.6