diff --git a/fetchmail/Dockerfile b/fetchmail/Dockerfile
index 7c7d9f3d..64b014f1 100644
--- a/fetchmail/Dockerfile
+++ b/fetchmail/Dockerfile
@@ -7,4 +7,6 @@ RUN apk add --update \
 
 COPY fetchmail.py /fetchmail.py
 
+USER fetchmail
+
 CMD ["/fetchmail.py"]