diff --git a/.github/workflows/ci_steps.yml b/.github/workflows/ci_steps.yml
index bb09155..99b02d4 100644
--- a/.github/workflows/ci_steps.yml
+++ b/.github/workflows/ci_steps.yml
@@ -5,7 +5,14 @@
 # This workflow will install a prebuilt Ruby version, install dependencies, and
 # run tests and linters.
 name: "Frederick API Gem CI"
-on: [push, pull_request]
+on:
+  push:
+    branches: [master] 
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 
 env:
   RUBY_VERSION: 2.4.3
@@ -47,4 +54,4 @@ jobs:
           bundler-cache: true
 
       - name: Lint Ruby files
-        run: bundle exec rubocop
\ No newline at end of file
+        run: bundle exec rubocop