diff --git a/Dockerfile b/Dockerfile
index af70e05..a232698 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,5 +29,6 @@ RUN wget -qO - https://github.com/koalaman/shellcheck/releases/download/v${SHELL
 RUN wget -qO /usr/local/bin/hadolint \
     https://github.com/hadolint/hadolint/releases/download/v${HADOLINT_VER}/hadolint-Linux-x86_64
 
-RUN chmod +x /usr/local/bin/*
+RUN chown root:root /usr/local/bin/* \
+ && chmod 0755 /usr/local/bin/*