diff --git a/containers/apps/devcontainer/Dockerfile b/containers/apps/devcontainer/Dockerfile
index eac0e9507ef..cd375ec4646 100644
--- a/containers/apps/devcontainer/Dockerfile
+++ b/containers/apps/devcontainer/Dockerfile
@@ -1,5 +1,5 @@
 # hadolint ignore=DL3007
-FROM mcr.microsoft.com/devcontainers/base:alpine
+FROM mcr.microsoft.com/devcontainers/base:alpine@sha256:f18f0de5a4d3fc76323133e0fa696258ddcfc10bef2b47adb5fdda3cf4704623
 
 ARG CLUSTERTOOL_VERSION=2.0.0
 ARG CONTAINER_NAME