diff --git a/exe/07/demos/library/package-lock.json b/exe/07/demos/library/package-lock.json
index 7c2d2f2..42c2073 100644
--- a/exe/07/demos/library/package-lock.json
+++ b/exe/07/demos/library/package-lock.json
@@ -95,7 +95,8 @@
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-      "version": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
       "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
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@@ -219,7 +220,7 @@
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-            "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+            "escape-string-regexp": "1.0.5",
             "supports-color": "4.5.0"
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@@ -364,7 +365,7 @@
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         "glob-parent": "2.0.0",
-        "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+        "inherits": "2.0.3",
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         "path-is-absolute": "1.0.1",
@@ -466,7 +467,7 @@
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       "dev": true,
       "requires": {
-        "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+        "inherits": "2.0.3",
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@@ -633,7 +634,8 @@
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-      "version": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
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@@ -703,7 +705,7 @@
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-            "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+            "escape-string-regexp": "1.0.5",
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@@ -1314,7 +1316,7 @@
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       "dev": true,
       "requires": {
-        "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz"
+        "escape-string-regexp": "1.0.5"
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@@ -1416,7 +1418,8 @@
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           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -1459,7 +1462,8 @@
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           "version": "0.4.2",
-          "bundled": true
+          "bundled": true,
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@@ -1472,6 +1476,7 @@
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           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1479,6 +1484,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1486,6 +1492,7 @@
         "brace-expansion": {
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           "bundled": true,
+          "optional": true,
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@@ -1493,7 +1500,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -1507,30 +1515,36 @@
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         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "combined-stream": {
           "version": "1.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
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         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "core-util-is": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1565,7 +1579,8 @@
         },
         "delayed-stream": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "1.0.0",
@@ -1592,7 +1607,8 @@
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         "extsprintf": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -1611,11 +1627,13 @@
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "fstream": {
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           "bundled": true,
+          "optional": true,
           "requires": {
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             "inherits": "2.0.3",
@@ -1666,6 +1684,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
@@ -1677,7 +1696,8 @@
         },
         "graceful-fs": {
           "version": "4.1.11",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "1.0.5",
@@ -1701,6 +1721,7 @@
         "hawk": {
           "version": "3.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "boom": "2.10.1",
             "cryptiles": "2.0.5",
@@ -1710,7 +1731,8 @@
         },
         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "http-signature": {
           "version": "1.1.1",
@@ -1725,6 +1747,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -1732,7 +1755,8 @@
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         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "1.3.4",
@@ -1742,6 +1766,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -1753,7 +1778,8 @@
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         "isarray": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -1816,11 +1842,13 @@
         },
         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1828,17 +1856,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1888,7 +1919,8 @@
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           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "0.8.2",
@@ -1903,6 +1935,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -1928,7 +1961,8 @@
         },
         "path-is-absolute": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "performance-now": {
           "version": "0.2.0",
@@ -1937,7 +1971,8 @@
         },
         "process-nextick-args": {
           "version": "1.0.7",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "punycode": {
           "version": "1.4.1",
@@ -1970,6 +2005,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "core-util-is": "1.0.2",
@@ -2012,13 +2048,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
         },
         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "semver": {
           "version": "5.3.0",
@@ -2038,6 +2076,7 @@
         "sntp": {
           "version": "1.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -2068,6 +2107,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -2077,6 +2117,7 @@
         "string_decoder": {
           "version": "1.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.0.1"
           }
@@ -2089,6 +2130,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -2101,6 +2143,7 @@
         "tar": {
           "version": "2.2.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "block-stream": "0.0.9",
             "fstream": "1.0.11",
@@ -2150,7 +2193,8 @@
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "uuid": {
           "version": "3.0.1",
@@ -2175,7 +2219,8 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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       }
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@@ -2203,7 +2248,7 @@
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         "inflight": "1.0.6",
-        "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+        "inherits": "2.0.3",
         "minimatch": "3.0.4",
         "once": "1.4.0",
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@@ -2339,7 +2384,8 @@
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     "inherits": {
-      "version": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
       "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
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     "ini": {
@@ -2391,7 +2437,7 @@
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             "ansi-styles": "3.2.0",
-            "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+            "escape-string-regexp": "1.0.5",
             "supports-color": "4.5.0"
           }
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@@ -2611,9 +2657,9 @@
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     "jquery": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.2.1.tgz",
-      "integrity": "sha1-XE2d5lKvbNCncBVKYxu6ErAVx4c="
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.4.0.tgz",
+      "integrity": "sha512-ggRCXln9zEqv6OqAGXFEcshF5dSBvCkzj6Gm2gzuR5fWawaX8t7cxKVkkygKODrDAzKdoYw3l/e3pm3vlT4IbQ=="
     },
     "js-stringify": {
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@@ -3535,7 +3581,7 @@
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       "requires": {
         "core-util-is": "1.0.2",
-        "inherits": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+        "inherits": "2.0.3",
         "isarray": "1.0.0",
         "process-nextick-args": "1.0.7",
         "safe-buffer": "5.1.1",
@@ -3819,10 +3865,11 @@
       }
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     "strip-ansi": {
-      "version": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "requires": {
-        "ansi-regex": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz"
+        "ansi-regex": "2.1.1"
       }
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     "strip-bom": {
@@ -3871,7 +3918,7 @@
           "dev": true,
           "requires": {
             "ansi-styles": "3.2.0",
-            "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+            "escape-string-regexp": "1.0.5",
             "supports-color": "4.5.0"
           }
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@@ -4024,7 +4071,7 @@
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           "requires": {
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-            "escape-string-regexp": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
+            "escape-string-regexp": "1.0.5",
             "supports-color": "4.5.0"
           }
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@@ -4097,7 +4144,7 @@
           "requires": {
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             "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz"
+            "strip-ansi": "3.0.1"
           }
         }
       }
diff --git a/exe/07/demos/library/package.json b/exe/07/demos/library/package.json
index 4edcdfc..2bce2e7 100644
--- a/exe/07/demos/library/package.json
+++ b/exe/07/demos/library/package.json
@@ -16,7 +16,7 @@
     "debug": "2.6.6",
     "ejs": "^2.5.7",
     "express": "4.15.2",
-    "jquery": "3.2.1",
+    "jquery": "3.4.0",
     "mongodb": "^3.0.1",
     "morgan": "1.8.1",
     "nodemon": "^1.12.1",