diff --git a/09-PWA/study1/06-ssr-service-worker/package-lock.json b/09-PWA/study1/06-ssr-service-worker/package-lock.json
old mode 100755
new mode 100644
index 3aebe4720..6c59e2927
--- a/09-PWA/study1/06-ssr-service-worker/package-lock.json
+++ b/09-PWA/study1/06-ssr-service-worker/package-lock.json
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