diff --git a/samples/server/petstore/cpp-qt-qhttpengine-server/server/Dockerfile b/samples/server/petstore/cpp-qt-qhttpengine-server/server/Dockerfile
index 9dfdd9ab4785..ae985f8fc9bb 100644
--- a/samples/server/petstore/cpp-qt-qhttpengine-server/server/Dockerfile
+++ b/samples/server/petstore/cpp-qt-qhttpengine-server/server/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest AS build
+FROM alpine:3.20.3 AS build
 
 RUN apk add --update \
         cmake \
@@ -15,7 +15,7 @@ WORKDIR /usr/server/build
 RUN cmake  -DNODEBUG:STRING="ON" ..
 RUN make
 
-FROM alpine:latest AS runtime
+FROM alpine:3.20.3 AS runtime
 RUN apk add --update \
         libgcc  \
         libstdc++  \