diff --git a/.github/workflows/build-pull-request.yml b/.github/workflows/build-pull-request.yml
index ca0070dff5..88b384c54c 100644
--- a/.github/workflows/build-pull-request.yml
+++ b/.github/workflows/build-pull-request.yml
@@ -74,7 +74,7 @@ jobs:
       fail-fast: false
       matrix:
         test_id: [121, 122]
-        starenv: [root5, root6]
+        starenv: [root5, root6, root624]
         compiler: [gcc485]
     env:
       STARENV: ${{ matrix.starenv }}-${{ matrix.compiler }}
@@ -100,7 +100,7 @@ jobs:
       fail-fast: false
       matrix:
         test_id: [102, 121, 122]
-        starenv: [root5, root6]
+        starenv: [root5, root6, root624]
         compiler: [gcc485]
     env:
       STARENV: ${{ matrix.starenv }}-${{ matrix.compiler }}