diff --git a/Chapter05/cryptocurrency_application/interface/explorer/package-lock.json b/Chapter05/cryptocurrency_application/interface/explorer/package-lock.json
index 41a919f..172b758 100644
--- a/Chapter05/cryptocurrency_application/interface/explorer/package-lock.json
+++ b/Chapter05/cryptocurrency_application/interface/explorer/package-lock.json
@@ -209,6 +209,14 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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+        }
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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@@ -455,6 +483,14 @@
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         "babel-types": "6.26.0",
         "lodash": "4.17.4"
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+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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     "babel-helper-remap-async-to-generator": {
@@ -659,6 +695,14 @@
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         "babel-types": "6.26.0",
         "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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     },
     "babel-plugin-transform-es2015-classes": {
@@ -998,6 +1042,14 @@
         "lodash": "4.17.4",
         "mkdirp": "0.5.1",
         "source-map-support": "0.4.18"
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+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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@@ -1021,6 +1073,14 @@
         "babel-types": "6.26.0",
         "babylon": "6.18.0",
         "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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@@ -1038,6 +1098,14 @@
         "globals": "9.18.0",
         "invariant": "2.2.2",
         "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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     "babel-types": {
@@ -1050,6 +1118,14 @@
         "esutils": "2.0.2",
         "lodash": "4.17.4",
         "to-fast-properties": "1.0.3"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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     "babylon": {
@@ -1769,6 +1845,12 @@
             "json5": "0.5.1",
             "object-assign": "4.1.1"
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+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
         }
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@@ -3367,6 +3449,12 @@
             "json5": "0.5.1",
             "object-assign": "4.1.1"
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+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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         }
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@@ -3479,6 +3567,12 @@
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+        "lodash": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
         }
       }
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@@ -3936,6 +4030,14 @@
       "requires": {
         "lodash": "4.17.4",
         "webpack-sources": "1.1.0"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
       }
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@@ -4001,10 +4103,9 @@
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-      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
-      "dev": true
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
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@@ -7934,15 +8035,6 @@
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-    "string_decoder": {
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-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
-      "requires": {
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@@ -7985,6 +8077,15 @@
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+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
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@@ -8569,6 +8670,12 @@
             "supports-color": "2.0.0"
           }
         },
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        },
         "supports-color": {
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@@ -8803,6 +8910,14 @@
       "dev": true,
       "requires": {
         "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
+        }
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     },
     "webpack-sources": {
diff --git a/Chapter05/cryptocurrency_application/interface/explorer/package.json b/Chapter05/cryptocurrency_application/interface/explorer/package.json
index b9fe9f0..4e7aa80 100644
--- a/Chapter05/cryptocurrency_application/interface/explorer/package.json
+++ b/Chapter05/cryptocurrency_application/interface/explorer/package.json
@@ -10,7 +10,7 @@
     "build": "node build/build.js"
   },
   "dependencies": {
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "vue": "^2.5.2",
     "vue-resource": "^1.3.4",
     "vue-router": "^3.0.1"