diff --git a/code/ch2/hello-world/package-lock.json b/code/ch2/hello-world/package-lock.json
new file mode 100644
index 00000000..455839a5
--- /dev/null
+++ b/code/ch2/hello-world/package-lock.json
@@ -0,0 +1,853 @@
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diff --git a/code/ch2/hello-world/package.json b/code/ch2/hello-world/package.json
index bf1e5365..98d37494 100644
--- a/code/ch2/hello-world/package.json
+++ b/code/ch2/hello-world/package.json
@@ -6,9 +6,9 @@
     "start": "node app.js"
   },
   "dependencies": {
-    "express": "4.1.2",
-    "jade": "1.3.1",
-    "mongoskin": "1.4.1",
-    "stylus": "0.44.0"
+    "express": "4.15.4",
+    "mongoskin": "2.1.0",
+    "pug": "2.0.0-rc.4",
+    "stylus": "0.54.5"
   }
 }