diff --git a/requirements.txt b/requirements.txt
index 593c89d..a10866f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ oauthlib==3.1.0
 opencv-python==4.1.2.30
 opt-einsum==3.1.0
 Pillow==7.0.0
-protobuf==3.11.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyjsparser==2.7.1