diff --git a/.github/workflows/containerized-ci.yml b/.github/workflows/containerized-ci.yml
index be87e23a1..3a931c60b 100644
--- a/.github/workflows/containerized-ci.yml
+++ b/.github/workflows/containerized-ci.yml
@@ -72,7 +72,7 @@ jobs:
       with:
         repository: earth-system-radiation/rrtmgp-data
         path: rrtmgp-data
-        ref: 1.8.1
+        ref: v1.8.1
     #
     # Build libraries, examples and tests (expect success)
     #