diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 37eab73..616e980 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -49,7 +49,7 @@ packaging==20.3
 pandas==1.0.1
 Pillow==9.0.1
 pluggy==0.13.1
-protobuf==3.11.3
+protobuf==3.18.3
 py==1.10.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8