diff --git a/package-lock.json b/package-lock.json
index c63a1c3..9af28a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -110,6 +110,11 @@
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           "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE="
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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@@ -410,7 +415,8 @@
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+      "integrity": "sha512-ZpYajIfO0j2cOFTO955KUMIKNmj6zhX8kVztMAxFsDaMwz+9Z9SV0uou2pC9HJqcfpffOsjnbrDMvkNy+9RXPw==",
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       "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
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@@ -679,6 +686,11 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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@@ -736,6 +762,13 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+        }
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@@ -1649,6 +1682,14 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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@@ -1747,6 +1788,14 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
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@@ -2256,7 +2306,8 @@
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+      "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
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-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
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@@ -3349,6 +3410,7 @@
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@@ -3363,12 +3425,14 @@
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-          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
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@@ -3392,7 +3456,8 @@
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-      "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4="
+      "integrity": "sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=",
+      "optional": true
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@@ -3638,6 +3703,14 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
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-      "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk="
+      "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
+      "optional": true
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@@ -4338,6 +4412,11 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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@@ -4431,6 +4510,11 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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@@ -4651,6 +4735,11 @@
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           "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
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+        "lodash": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
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@@ -5378,6 +5467,12 @@
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "dev": true
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@@ -5451,9 +5546,10 @@
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
-      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
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+      "dev": true
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@@ -5742,7 +5838,8 @@
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-      "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0="
+      "integrity": "sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=",
+      "optional": true
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@@ -6109,7 +6206,8 @@
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-          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "optional": true
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@@ -6218,6 +6316,7 @@
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+      "optional": true,
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@@ -8004,7 +8103,14 @@
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-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo="
+          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
+          "optional": true
+        },
+        "lodash": {
+          "version": "4.17.4",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+          "optional": true
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@@ -8056,6 +8162,13 @@
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           "requires": {
             "lodash": "4.17.4"
+          },
+          "dependencies": {
+            "lodash": {
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+              "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+              "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+            }
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@@ -8791,14 +8904,6 @@
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-      "requires": {
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       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -8824,6 +8929,14 @@
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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==",
+      "requires": {
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+      }
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       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
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           "requires": {
             "lodash": "4.17.4"
+          },
+          "dependencies": {
+            "lodash": {
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+              "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+              "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+            }
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@@ -9742,6 +9862,13 @@
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           "requires": {
             "lodash": "4.17.4"
+          },
+          "dependencies": {
+            "lodash": {
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+              "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+              "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+            }
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         "cliui": {
@@ -9959,6 +10086,13 @@
       "integrity": "sha1-8dgB0sXTn4P/7J8RkkCz476ZShw=",
       "requires": {
         "lodash": "4.17.4"
+      },
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+        "lodash": {
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+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+        }
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@@ -10028,6 +10162,7 @@
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+      "optional": true,
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diff --git a/package.json b/package.json
index f46d9ea..f161ff1 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
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     "karma-jasmine-html-reporter": "^0.2.2",
     "lite-server": "^2.2.2",
-    "lodash": "^4.16.4",
+    "lodash": "^4.17.21",
     "protractor": "~4.0.14",
     "rimraf": "^2.5.4",
     "tslint": "^3.15.1",