diff --git a/backend/requirements.txt b/backend/requirements.txt
index 3a2d132..636df98 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -25,7 +25,7 @@ numpy==1.17.0
 oauthlib==3.1.0
 opencv-python==4.2.0.34
 Pillow==7.2.0
-protobuf==3.12.4
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pylint==2.5.3