diff --git a/Dockerfile b/Dockerfile
index 698e424..958b3ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,4 +15,4 @@ COPY requirements.txt /tmp/
 RUN pip install --requirement /tmp/requirements.txt
 
 COPY create-pull-request.py /create-pull-request.py
-ENTRYPOINT [ "python", "/create-pull-request.py" ]
\ No newline at end of file
+ENTRYPOINT [ "/create-pull-request.py" ]
\ No newline at end of file
diff --git a/create-pull-request.py b/create-pull-request.py
old mode 100644
new mode 100755
index 74ac5c9..06b6150
--- a/create-pull-request.py
+++ b/create-pull-request.py
@@ -1,4 +1,5 @@
-''' create-pull-request.py '''
+#!/usr/bin/env python3
+''' Create Pull Request '''
 import json
 import os
 from git import Repo