diff --git a/.github/workflows/ncc.yml b/.github/workflows/ncc.yml
index dd42a46..9f4dbfe 100644
--- a/.github/workflows/ncc.yml
+++ b/.github/workflows/ncc.yml
@@ -21,8 +21,8 @@ jobs:
       id: selftest
       uses: ./
       with:
-        src: './func.cjs'
-        ncc_args: '-o testdist'
+        src: 'index.cjs'
+        #ncc_args: '-o testdist'
         
     - uses: EndBug/add-and-commit@v9
       if: ${{ github.actor != 'dependabot[bot]' }}
diff --git a/__test__/func.test.js b/__test__/func.test.js
index 934b943..f9cdb52 100644
--- a/__test__/func.test.js
+++ b/__test__/func.test.js
@@ -41,7 +41,7 @@ describe('run', () => {
 
         expect(core.startGroup).toHaveBeenCalledWith('Compiling /my/workdir/index.js');
         expect(await exec.exec).toHaveBeenCalledTimes(2);
-        expect(await exec.exec).toHaveBeenNthCalledWith (1,'npm', ['install', "--no-save"]);
+        expect(await exec.exec).toHaveBeenNthCalledWith (1,'yarn', ['install', "--no-save"]);
         expect(await exec.exec).toHaveBeenNthCalledWith (2,'npx', ['@vercel/ncc', 'build', '/my/workdir/index.js']);
         expect(core.endGroup).toHaveBeenCalledWith('Compiling /my/workdir/index.js');
         expect(core.info).toHaveBeenCalledWith('Compiled successfully 📦 🎉 ');
diff --git a/action.yml b/action.yml
index 7dbee5f..cb56027 100644
--- a/action.yml
+++ b/action.yml
@@ -1,6 +1,6 @@
 name: 'ncc action'
-description: 'use @sidey79/ncc to compile and push your github action dist! 🚀'
-author: 'Sven Butzek'
+description: 'use sidey79/ncc to compile and push your github action dist! 🚀'
+author: 'Sidey79'
 inputs:
   src: 
     description: 'source code dir/file to compile'
@@ -10,7 +10,7 @@ inputs:
     required: false
 runs:
   using: 'node20'
-  main: 'dist/index.js'
+  main: 'dist/index.cjs'
 branding:
   icon: 'box'  
   color: 'green'
diff --git a/func.cjs b/func.cjs
index 1b446a3..67167a5 100644
--- a/func.cjs
+++ b/func.cjs
@@ -15,7 +15,7 @@ async function run_compile() {
       core.startGroup(`Compiling ${src}`);
   
       // install dependencies
-      await exec('npm', ['install', "--no-save"]);
+      await exec.exec('yarn', ['install', "--no-save"]);
   
       // compile code
       const compileArgs = ['@vercel/ncc', 'build', src];
@@ -25,7 +25,7 @@ async function run_compile() {
         compileArgs.push(...args);
       }
   
-      await exec('npx', compileArgs);
+      await exec.exec('npx', compileArgs);
   
       core.endGroup(`Compiling ${src}`);
   
diff --git a/yarn.lock b/yarn.lock
index c762ae4..c8d4436 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -26,9 +26,9 @@
     undici "^5.25.4"
 
 "@actions/io@^1.0.1":
-  version "1.1.1"
-  resolved "https://registry.npmjs.org/@actions/io/-/io-1.1.1.tgz"
-  integrity sha512-Qi4JoKXjmE0O67wAOH6y0n26QXhMKMFo7GD/4IXNVcrtLjUlGjGuVys6pQgwF3ArfGTQu0XpqaNr0YhED2RaRA==
+  version "1.1.3"
+  resolved "https://registry.npmjs.org/@actions/io/-/io-1.1.3.tgz"
+  integrity sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q==
 
 "@ampproject/remapping@^2.2.0":
   version "2.3.0"
@@ -333,9 +333,9 @@
     eslint-visitor-keys "^3.3.0"
 
 "@eslint-community/regexpp@^4.6.1":
-  version "4.10.0"
-  resolved "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.10.0.tgz"
-  integrity sha512-Cu96Sd2By9mCNTx2iyKOmq10v22jUVQv0lQnlGNy16oE9589yE+QADPbrMGCkA51cKZSg3Pu/aTJVTGfL/qjUA==
+  version "4.12.1"
+  resolved "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.12.1.tgz"
+  integrity sha512-CCZCDJuduB9OUkFkY2IgppNZMi2lBQgD2qzwXkEia16cge2pijY/aXi96CJMquDMn3nJdlPV1A5KrJEXwfLNzQ==
 
 "@eslint/config-array@^0.15.1":
   version "0.15.1"
@@ -1056,7 +1056,7 @@ cross-spawn@^7.0.2, cross-spawn@^7.0.3:
 
 debug@^4.1.0, debug@^4.1.1, debug@^4.3.1, debug@^4.3.2:
   version "4.3.5"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.5.tgz#e83444eceb9fedd4a1da56d671ae2446a01a6e1e"
+  resolved "https://registry.npmjs.org/debug/-/debug-4.3.5.tgz"
   integrity sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg==
   dependencies:
     ms "2.1.2"
@@ -1917,7 +1917,7 @@ jest-worker@^29.7.0:
     merge-stream "^2.0.0"
     supports-color "^8.0.0"
 
-jest@^29.3.1:
+jest@^29.7.0:
   version "29.7.0"
   resolved "https://registry.npmjs.org/jest/-/jest-29.7.0.tgz"
   integrity sha512-NIy3oAFp9shda19hy4HK0HRTWKtPJmGdnvywu01nOqNC2vZg+Z+fvJDxpMQA88eb2I9EcafcdjYgsDthnYTvGw==