diff --git a/.github/workflows/test-and-coverage.yml b/.github/workflows/test-and-coverage.yml
index 9ec0f7a..73a1677 100644
--- a/.github/workflows/test-and-coverage.yml
+++ b/.github/workflows/test-and-coverage.yml
@@ -1,13 +1,16 @@
 name: Run Tests and Code Coverage
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [ main ]
+  pull_request:
 
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        luaVersion: [lua=5.1, lua=5.2, lua=5.3, lua=5.4, luajit=2.0, luajit=@v2.1.ROLLING]
+        lua: [lua=5.1, lua=5.2, lua=5.3, lua=5.4, luajit=2.0, luajit=@v2.1.ROLLING]
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE.
       - uses: actions/checkout@v4
@@ -18,7 +21,8 @@ jobs:
       - name: Install Lua (${{ matrix.lua }})
         run: |
           pip install hererocks
-          hererocks lua_install -r^ --${{ matrix.lua }}
+          hererocks -r^ --${{ matrix.lua }} lua_install
+          echo lua_install/bin >> $GITHUB_PATH
 
       - name: Install toml-test
         run: go install github.com/toml-lang/toml-test/cmd/toml-test@v1.5.0
@@ -29,8 +33,10 @@ jobs:
           luarocks install luacov
           luarocks install luacov-coveralls
           
-      - name: run unit tests with coverage
-        run: toml-test lua -llcov spec/test-runner.lua
+      - name: run toml-test with coverage
+        continue-on-error: true
+        run: |
+          toml-test -parallel 1 -- lua_install/bin/lua -lluacov spec/toml-test.lua
           
       - name: Report test coverage
         if: success()
diff --git a/README.md b/README.md
index 6c2ded0..841478a 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,2 @@
 # tinytoml
+[![Run Tests and Code Coverage](https://github.com/FourierTransformer/tinytoml/actions/workflows/test-and-coverage.yml/badge.svg)](https://github.com/FourierTransformer/tinytoml/actions/workflows/test-and-coverage.yml) [![Coverage Status](https://coveralls.io/repos/github/FourierTransformer/tinytoml/badge.svg?branch=refs/pull/1/merge)](https://coveralls.io/github/FourierTransformer/tinytoml?branch=refs/pull/1/merge)