diff --git a/.github/workflows/deltachat-rpc-server.yml b/.github/workflows/deltachat-rpc-server.yml
index 0cf842f16..72c3dc919 100644
--- a/.github/workflows/deltachat-rpc-server.yml
+++ b/.github/workflows/deltachat-rpc-server.yml
@@ -2,6 +2,10 @@
 
 name: Build deltachat-rpc-server binaries
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   workflow_dispatch: