diff --git a/requirements.txt b/requirements.txt
index c8ed091..2339a61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ numpy==1.18.2
 oauthlib==3.1.0
 opencv-python==4.2.0.32
 opt-einsum==3.2.0
-protobuf==3.11.4
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycparser==2.20