diff --git a/.github/workflows/upstream-sync.yml b/.github/workflows/upstream-sync.yml
index adf33529833..64658dee5b3 100644
--- a/.github/workflows/upstream-sync.yml
+++ b/.github/workflows/upstream-sync.yml
@@ -8,11 +8,6 @@ permissions:
   contents: write
   pull-requests: write
 jobs:
-  synchronise-2023-1:
-    name: Synchronise 2023.1
-    uses: stackhpc/.github/.github/workflows/upstream-sync.yml@main
-    with:
-      release_series: 2023.1
   synchronise-wallaby:
     name: Synchronise wallaby
     uses: stackhpc/.github/.github/workflows/upstream-sync.yml@main