diff --git a/F2020/lecture9/package-lock.json b/F2020/lecture9/package-lock.json
index fcdce16..90b81c8 100644
--- a/F2020/lecture9/package-lock.json
+++ b/F2020/lecture9/package-lock.json
@@ -4670,9 +4670,9 @@
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+      "version": "1.2.8",
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