diff --git a/Dockerfile b/Dockerfile
index fa0188a..bcf3a57 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,4 +5,5 @@ FROM alpine:3.10
 COPY entrypoint.sh /entrypoint.sh
 
 # Code file to execute when the docker container starts up (`entrypoint.sh`)
+RUN chmod +x /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]