diff --git a/.github/workflows/test-and-coverage.yml b/.github/workflows/test-and-coverage.yml
index 8ad535a..84d6f58 100644
--- a/.github/workflows/test-and-coverage.yml
+++ b/.github/workflows/test-and-coverage.yml
@@ -1,6 +1,9 @@
 name: Run Tests and Code Coverage
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [ main ]
+  pull_request:
 
 jobs:
   test:
@@ -31,7 +34,7 @@ jobs:
           luarocks install luacov-coveralls
           
       - name: run unit tests with coverage
-        run: toml-test lua -lluacov spec/test-runner.lua
+        run: toml-test -- lua -lluacov spec/test-runner.lua
           
       - name: Report test coverage
         if: success()