diff --git a/test.Dockerfile b/test.Dockerfile
index 47ab91142..dbdc45e86 100644
--- a/test.Dockerfile
+++ b/test.Dockerfile
@@ -1 +1 @@
-FROM gcr.io/distroless/nodejs22-debian12:nonroot
+FROM gcr.io/distroless/nodejs22-debian12:nonroot@sha256:de286271ef771e563194702ff49cc5d60e7ea59a09349cdae129e3b0c6ab396b