diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
index 75879663..d50af0b7 100644
--- a/.github/workflows/bench.yml
+++ b/.github/workflows/bench.yml
@@ -32,7 +32,7 @@ on:
     -  cron: '04 2 * * *'
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}-${{ github.event.inputs.sha }}
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}-${{ github.event.inputs.sha }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.github/workflows/server.yml b/.github/workflows/server.yml
index 521cc29a..3e68a3c8 100644
--- a/.github/workflows/server.yml
+++ b/.github/workflows/server.yml
@@ -23,7 +23,7 @@ on:
     -  cron: '2 4 * * *'
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref && github.ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
   cancel-in-progress: true
 
 jobs: