diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index d060c6d..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,16 +0,0 @@
-FROM alpine/git:1.0.7
-
-LABEL "com.github.actions.name"="Auto Commit changed files"
-LABEL "com.github.actions.description"="Automatically commits files which have been changed during the workflow run and push changes back to remote repository."
-LABEL "com.github.actions.icon"="git-commit"
-LABEL "com.github.actions.color"="orange"
-
-LABEL "repository"="http://github.com/stefanzweifel/git-auto-commit-action"
-LABEL "homepage"="http://github.com/stefanzweifel/git-auto-commit-action"
-LABEL "maintainer"="Stefan Zweifel <hello@stefanzweifel.io>"
-
-RUN apk add git-lfs
-
-COPY entrypoint.sh /entrypoint.sh
-
-ENTRYPOINT ["sh", "/entrypoint.sh"]
diff --git a/action.yml b/action.yml
index 4988a84..f6b6077 100644
--- a/action.yml
+++ b/action.yml
@@ -36,8 +36,8 @@ inputs:
     default: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
 
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
+  using: 'node12'
+  main: 'index.js'
 
 branding:
   icon: 'git-commit'
diff --git a/entrypoint.sh b/entrypoint.sh
index 87b28bc..766759b 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -28,7 +28,7 @@ _switch_to_repository() {
 }
 
 _git_is_dirty() {
-    [[ -n "$(git status -s)" ]]
+    [ -n "$(git status -s)" ]
 }
 
 # Set up git user configuration
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..b70f3e0
--- /dev/null
+++ b/index.js
@@ -0,0 +1,34 @@
+/**
+ * Most of this code has been copied from the following GitHub Action
+ * to make it simpler or not necessary to install a lot of
+ * JavaScript packages to execute a shell script.
+ *
+ * https://github.com/ad-m/github-push-action/blob/fe38f0a751bf9149f0270cc1fe20bf9156854365/start.js
+ */
+
+const spawn = require('child_process').spawn;
+const path = require("path");
+
+const exec = (cmd, args=[]) => new Promise((resolve, reject) => {
+    console.log(`Started: ${cmd} ${args.join(" ")}`)
+    const app = spawn(cmd, args, { stdio: 'inherit' });
+    app.on('close', code => {
+        if(code !== 0){
+            err = new Error(`Invalid status code: ${code}`);
+            err.code = code;
+            return reject(err);
+        };
+        return resolve(code);
+    });
+    app.on('error', reject);
+});
+
+const main = async () => {
+    await exec('bash', [path.join(__dirname, './entrypoint.sh')]);
+};
+
+main().catch(err => {
+    console.error(err);
+    console.error(err.stack);
+    process.exit(err.code || -1);
+})