diff --git a/Dockerfile b/Dockerfile
index 537cd9d..05754aa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,8 @@ ENV TZ=Europe/Brussels
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 COPY update_and_run.sh /app
-RUN chmod +x /app/update_and_run.sh
-CMD ["./update_and_run.sh"]
-ENTRYPOINT ["sh", "-c", "./update_and_run.sh"]
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+# Normalize line endings (Windows CRLF -> LF) and ensure readable
+RUN sed -i 's/\r$//' /app/update_and_run.sh && chmod a+r /app/update_and_run.sh
+
+# Single entrypoint: run via sh (no exec bit required, survives noexec mounts)
+ENTRYPOINT ["sh", "/app/update_and_run.sh"]
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