diff --git a/python/requirements.txt b/python/requirements.txt
index 50dd71c..267c562 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -25,7 +25,7 @@ oauthlib==3.1.0
 opencv-contrib-python==4.2.0.34
 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