diff --git a/.github/workflows/continuous-integration-workflow-hpx.yml b/.github/workflows/continuous-integration-workflow-hpx.yml
index 8b39350dc87..187c4e61ec3 100644
--- a/.github/workflows/continuous-integration-workflow-hpx.yml
+++ b/.github/workflows/continuous-integration-workflow-hpx.yml
@@ -36,7 +36,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           repository: STELLAR-GROUP/hpx
-          ref: 1.8.0
+          ref: v1.9.0
           path: hpx
       - uses: actions/cache@v3
         id:   cache-hpx