diff --git a/.github/workflows/conformance-weekly.yaml b/.github/workflows/conformance-weekly.yaml
index 258495e2..f183b802 100644
--- a/.github/workflows/conformance-weekly.yaml
+++ b/.github/workflows/conformance-weekly.yaml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         include:
           - spec-version: '2025-11-25'
-            dist-tag: latest
+            dist-tag: alpha
             path: '/'
             baseline: conformance-baseline-2025-11-25.yml
           - spec-version: '2026-07-28'
@@ -78,7 +78,7 @@ jobs:
       matrix:
         include:
           - spec-version: '2025-11-25'
-            dist-tag: latest
+            dist-tag: alpha
             baseline: conformance-baseline-2025-11-25.yml
           - spec-version: '2026-07-28'
             dist-tag: alpha