diff --git a/Chapter07/postgres-app/package-lock.json b/Chapter07/postgres-app/package-lock.json
deleted file mode 100644
index 40680cb..0000000
--- a/Chapter07/postgres-app/package-lock.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "requires": true,
-  "lockfileVersion": 1,
-  "dependencies": {
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/buffer-writer/-/buffer-writer-2.0.0.tgz",
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-    },
-    "dotenv": {
-      "version": "8.2.0",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-8.2.0.tgz",
-      "integrity": "sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw=="
-    },
-    "packet-reader": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/packet-reader/-/packet-reader-1.0.0.tgz",
-      "integrity": "sha512-HAKu/fG3HpHFO0AA8WE8q2g+gBJaZ9MG7fcKk+IJPLTGAD6Psw4443l+9DGRbOIh3/aXr7Phy0TjilYivJo5XQ=="
-    },
-    "pg": {
-      "version": "8.0.3",
-      "resolved": "https://registry.npmjs.org/pg/-/pg-8.0.3.tgz",
-      "integrity": "sha512-fvcNXn4o/iq4jKq15Ix/e58q3jPSmzOp6/8C3CaHoSR/bsxdg+1FXfDRePdtE/zBb3++TytvOrS1hNef3WC/Kg==",
-      "requires": {
-        "buffer-writer": "2.0.0",
-        "packet-reader": "1.0.0",
-        "pg-connection-string": "0.1.3",
-        "pg-pool": "^3.1.1",
-        "pg-protocol": "^1.2.2",
-        "pg-types": "^2.1.0",
-        "pgpass": "1.x",
-        "semver": "4.3.2"
-      }
-    },
-    "pg-connection-string": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-0.1.3.tgz",
-      "integrity": "sha1-2hhHsglA5C7hSSvq9l1J2RskXfc="
-    },
-    "pg-int8": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/pg-int8/-/pg-int8-1.0.1.tgz",
-      "integrity": "sha512-WCtabS6t3c8SkpDBUlb1kjOs7l66xsGdKpIPZsg4wR+B3+u9UAum2odSsF9tnvxg80h4ZxLWMy4pRjOsFIqQpw=="
-    },
-    "pg-pool": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/pg-pool/-/pg-pool-3.1.1.tgz",
-      "integrity": "sha512-kYH6S0mcZF1TPg1F9boFee2JlCSm2oqnlR2Mz2Wgn1psQbEBNVeNTJCw2wCK48QsctwvGUzbxLMg/lYV6hL/3A=="
-    },
-    "pg-protocol": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/pg-protocol/-/pg-protocol-1.2.2.tgz",
-      "integrity": "sha512-r8hGxHOk3ccMjjmhFJ/QOSVW5A+PP84TeRlEwB/cQ9Zu+bvtZg8Z59Cx3AMfVQc9S0Z+EG+HKhicF1W1GN5Eqg=="
-    },
-    "pg-types": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/pg-types/-/pg-types-2.2.0.tgz",
-      "integrity": "sha512-qTAAlrEsl8s4OiEQY69wDvcMIdQN6wdz5ojQiOy6YRMuynxenON0O5oCpJI6lshc6scgAY8qvJ2On/p+CXY0GA==",
-      "requires": {
-        "pg-int8": "1.0.1",
-        "postgres-array": "~2.0.0",
-        "postgres-bytea": "~1.0.0",
-        "postgres-date": "~1.0.4",
-        "postgres-interval": "^1.1.0"
-      }
-    },
-    "pgpass": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/pgpass/-/pgpass-1.0.2.tgz",
-      "integrity": "sha1-Knu0G2BltnkH6R2hsHwYR8h3swY=",
-      "requires": {
-        "split": "^1.0.0"
-      }
-    },
-    "postgres-array": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
-      "integrity": "sha512-VpZrUqU5A69eQyW2c5CA1jtLecCsN2U/bD6VilrFDWq5+5UIEVO7nazS3TEcHf1zuPYO/sqGvUvW62g86RXZuA=="
-    },
-    "postgres-bytea": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/postgres-bytea/-/postgres-bytea-1.0.0.tgz",
-      "integrity": "sha1-AntTPAqokOJtFy1Hz5zOzFIazTU="
-    },
-    "postgres-date": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.5.tgz",
-      "integrity": "sha512-pdau6GRPERdAYUQwkBnGKxEfPyhVZXG/JiS44iZWiNdSOWE09N2lUgN6yshuq6fVSon4Pm0VMXd1srUUkLe9iA=="
-    },
-    "postgres-interval": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/postgres-interval/-/postgres-interval-1.2.0.tgz",
-      "integrity": "sha512-9ZhXKM/rw350N1ovuWHbGxnGh/SNJ4cnxHiM0rxE4VN41wsg8P8zWn9hv/buK00RP4WvlOyr/RBDiptyxVbkZQ==",
-      "requires": {
-        "xtend": "^4.0.0"
-      }
-    },
-    "semver": {
-      "version": "4.3.2",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-4.3.2.tgz",
-      "integrity": "sha1-x6BxWKgL7dBSNVt3DYLWZA+AO+c="
-    },
-    "split": {
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-      "resolved": "https://registry.npmjs.org/split/-/split-1.0.1.tgz",
-      "integrity": "sha512-mTyOoPbrivtXnwnIxZRFYRrPNtEFKlpB2fvjSnCQUiAA6qAZzqwna5envK4uk6OIeP17CsdF3rSBGYVBsU0Tkg==",
-      "requires": {
-        "through": "2"
-      }
-    },
-    "through": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
-    },
-    "xtend": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
-      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
-    }
-  }
-}
diff --git a/Chapter07/postgres-app/package.json b/Chapter07/postgres-app/package.json
new file mode 100644
index 0000000..e5f81cc
--- /dev/null
+++ b/Chapter07/postgres-app/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "postgres-app",
+  "version": "1.0.0",
+  "description": "",
+  "main": "tasks.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^8.2.0",
+    "pg": "^8.2.1"
+  }
+}