diff --git a/Dockerfile b/Dockerfile
index 585571c..e5d563a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:8.0
+FROM mcr.microsoft.com/dotnet/sdk:8.0@sha256:b27b1354af00b7d4c922d74084f5c8a5cbf51f96de9ab855812bf17cbf176dd2
 WORKDIR /scip-dotnet
 ADD . /scip-dotnet
 RUN dotnet pack