diff --git a/src/renovate.ts b/src/renovate.ts
index 13c347d3..116c63cc 100644
--- a/src/renovate.ts
+++ b/src/renovate.ts
@@ -20,7 +20,9 @@ class Renovate {
   }
 
   async runDockerContainer(): Promise<void> {
-    const group = await this.getDockerGroup();
+    const renovateDockerUser = 'ubuntu';
+    const githubActionsDockerGroup = 'docker';
+
     const commandArguments = [
       '--rm',
       `--env ${this.configFileEnv}=${this.configFileMountPath()}`,
@@ -28,7 +30,7 @@ class Renovate {
       `--volume ${this.configFile}:${this.configFileMountPath()}`,
       `--volume /var/run/docker.sock:/var/run/docker.sock`,
       `--volume /tmp:/tmp`,
-      `--user 1000:${group}`,
+      `--user ${renovateDockerUser}:${githubActionsDockerGroup}`,
       this.docker.image(),
     ];
     const command = `docker run ${commandArguments.join(' ')}`;
@@ -39,18 +41,6 @@ class Renovate {
     }
   }
 
-  /**
-   * Fetch the host docker group on github.
-   * Container user needs this to access the docker socket.
-   */
-  private async getDockerGroup(): Promise<string> {
-    const groups = await fs.promises.readFile('/etc/group', {
-      encoding: 'utf-8',
-    });
-    const [, group] = /^docker:x:([1-9][0-9]*):$/m.exec(groups);
-    return group;
-  }
-
   private validateArguments(): void {
     if (!fs.existsSync(this.configFile)) {
       throw new Error(