diff --git a/requirements.txt b/requirements.txt
index e8ca63d..2e5c349 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ numpy==1.18.2
 oauthlib==3.1.0
 opencv-python==4.2.0.32
 opt-einsum==3.2.0
-protobuf==3.11.3
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.6