diff --git a/demo/Dockerfile b/demo/Dockerfile
index 8cf56d1d5..856fa9376 100644
--- a/demo/Dockerfile
+++ b/demo/Dockerfile
@@ -21,7 +21,7 @@ COPY internal /src/internal
 ARG VERSION
 RUN CGO_ENABLED=0 make -C /src VERSION="${VERSION:-dev}" karma
 
-FROM alpine:3.11
+FROM alpine:3.12
 COPY --from=lmierzwa/kthxbye:v0.7 /kthxbye /kthxbye
 COPY --from=prom/alertmanager:v0.20.0 /bin/alertmanager /alertmanager
 RUN apk add supervisor python && rm  -rf /tmp/* /var/cache/apk/*