diff --git a/Backend/Dockerfile b/Backend/Dockerfile
index f0e30198f2..d05e527bf3 100644
--- a/Backend/Dockerfile
+++ b/Backend/Dockerfile
@@ -7,7 +7,7 @@
 ############################################################
 
 # Docker multi-stage build
-FROM mcr.microsoft.com/dotnet/sdk:8.0.401-jammy AS builder
+FROM mcr.microsoft.com/dotnet/sdk:8.0.401-1-jammy AS builder
 WORKDIR /app
 
 # Copy csproj and restore (fetch dependencies) as distinct layers.