diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4bca3eb92..ea2a4d5df 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - master
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+  
 env:
   MPLBACKEND: agg
   OPENBLAS_NUM_THREADS: 1