diff --git a/Dockerfile.render-demo b/Dockerfile.render-demo
index 2b58d6b6e10b32..1cb9eb85b74438 100644
--- a/Dockerfile.render-demo
+++ b/Dockerfile.render-demo
@@ -51,7 +51,7 @@ RUN VERSION=`cat ./VERSION` && CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build \
         ./bin/server/main.go
 
 # Use debian because mysql requires glibc.
-FROM debian:bullseye-slim as monolithic
+FROM debian:11.6-slim as monolithic
 
 ARG VERSION="development"
 ARG RENDER_GIT_COMMIT="unknown"