diff --git a/Dockerfile b/Dockerfile
index 2655b95..5cd728d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,4 +6,4 @@ RUN pip3 install -r requirements.txt
 
 COPY . /app
 
-CMD python /app/gitea-to-ics.py
+ENTRYPOINT ["python", "/app/gitea-to-ics.py"]