diff --git a/F2019/lecture9/sample-2/package-lock.json b/F2019/lecture9/sample-2/package-lock.json
index f82a7db..8f8375a 100644
--- a/F2019/lecture9/sample-2/package-lock.json
+++ b/F2019/lecture9/sample-2/package-lock.json
@@ -5364,11 +5364,6 @@
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@@ -5386,14 +5381,6 @@
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@@ -5516,13 +5503,6 @@
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@@ -5746,15 +5726,16 @@
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+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
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-        "optimist": "^0.6.1",
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-        "uglify-js": "^3.1.4"
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@@ -5762,17 +5743,6 @@
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-          "dev": true,
-          "optional": true,
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@@ -9471,9 +9441,9 @@
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-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA=="
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@@ -9495,18 +9465,11 @@
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-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
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-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
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+        "minimist": "^1.2.6"
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@@ -9860,7 +9823,7 @@
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-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
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@@ -9869,12 +9832,12 @@
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-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
+          "integrity": "sha512-iotkTvxc+TwOm5Ieim8VnSNvCDjCK9S8G3scJ50ZthspSxa7jx50jkhYduuAtAjvfDUwSgOwf8+If99AlOEhyw=="
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-          "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+          "integrity": "sha512-1tMA907+V4QmxV7dbRvb4/8MaRALK6q9Abid3ndMYnbyo8piisCmeONVqVSXqQA3KaP4SLt5b7ud6E2sqP8TFw=="
         }
       }
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@@ -12142,6 +12105,13 @@
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+    "uglify-js": {
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+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz",
+      "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
+      "dev": true,
+      "optional": true
+    },
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