diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 86d8b1b..c59a2ea 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ jobs:
         baseImage:
           - mcr.microsoft.com/devcontainers/base:ubuntu
           - mcr.microsoft.com/devcontainers/base:debian
-          - alpine:3.19
+          - mcr.microsoft.com/devcontainers/base:alpine
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/test/blobber/scenarios.json b/test/blobber/scenarios.json
index 1ff410c..079f067 100644
--- a/test/blobber/scenarios.json
+++ b/test/blobber/scenarios.json
@@ -1,12 +1,12 @@
 {
   "test_alpine": {
-    "image": "alpine:3.19",
+    "image": "mcr.microsoft.com/devcontainers/base:alpine",
     "features": {
       "blobber": {}
     }
   },
   "test_debian": {
-    "image": "debian:bookworm",
+    "image": "mcr.microsoft.com/devcontainers/base:debian",
     "features": {
       "blobber": {}
     }