diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 0052938..2bc91f8 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -10,6 +10,7 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
+    concurrency: sequential
 
     steps:
       - uses: actions/checkout@v2