diff --git a/package-lock.json b/package-lock.json
index a14dccd..e56e34e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -538,6 +538,7 @@
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       "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
       "dev": true,
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@@ -1169,9 +1170,9 @@
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-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.3.7.tgz",
-      "integrity": "sha1-WjiTlFSfIzMIdaOxUGVldPip63E="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.0.0.tgz",
+      "integrity": "sha512-gulJE5dGFo6Q61V/whS6VM4WIyrlydXfCgkE+Gxe5hjrJ8rXLLZlALq7zq2RPhOc45PSwQpJkrTnc2KgD6cvmA=="
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@@ -1453,7 +1454,8 @@
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       "integrity": "sha1-JrOIXRD6E9t/wBquOquHAZngEkw=",
-      "dev": true
+      "dev": true,
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@@ -2016,7 +2018,8 @@
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       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-      "dev": true
+      "dev": true,
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@@ -2492,7 +2495,8 @@
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       "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
-      "dev": true
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@@ -3561,15 +3565,6 @@
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-      "integrity": "sha1-1qh/JiJxzv6+wwxVNAf7mV2od3o=",
-      "dev": true,
-      "requires": {
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@@ -3629,7 +3624,8 @@
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-          "dev": true
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@@ -3680,7 +3676,8 @@
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+          "dev": true,
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@@ -3695,6 +3692,7 @@
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           "dev": true,
+          "optional": true,
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@@ -3703,6 +3701,7 @@
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+          "optional": true,
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@@ -3711,6 +3710,7 @@
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@@ -3719,7 +3719,8 @@
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@@ -3736,12 +3737,14 @@
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+          "dev": true,
+          "optional": true
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           "dev": true,
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@@ -3749,22 +3752,26 @@
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@@ -3804,7 +3811,8 @@
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@@ -3836,7 +3844,8 @@
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@@ -3858,12 +3867,14 @@
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@@ -3919,6 +3930,7 @@
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@@ -3931,7 +3943,8 @@
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@@ -3959,6 +3972,7 @@
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@@ -3969,7 +3983,8 @@
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@@ -3986,6 +4001,7 @@
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@@ -3994,7 +4010,8 @@
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@@ -4006,6 +4023,7 @@
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@@ -4019,7 +4037,8 @@
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@@ -4092,12 +4111,14 @@
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@@ -4106,6 +4127,7 @@
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@@ -4113,12 +4135,14 @@
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@@ -4173,7 +4197,8 @@
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@@ -4191,6 +4216,7 @@
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@@ -4220,7 +4246,8 @@
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@@ -4231,7 +4258,8 @@
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@@ -4269,6 +4297,7 @@
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@@ -4313,6 +4342,7 @@
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@@ -4320,7 +4350,8 @@
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@@ -4344,6 +4375,7 @@
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@@ -4387,6 +4420,7 @@
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@@ -4401,6 +4435,7 @@
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@@ -4415,6 +4450,7 @@
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@@ -4470,7 +4506,8 @@
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+      "version": "3.0.0",
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-        "which": "1.3.0"
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       "integrity": "sha1-z1mU4v0mjQD1zw+nZ6CBae2wfsA=",
       "dev": true,
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@@ -9802,6 +9853,7 @@
       "resolved": "https://registry.npmjs.org/socks/-/socks-1.1.10.tgz",
       "integrity": "sha1-W4t/x8jzQcU+0FbpKbe/Tei6e1o=",
       "dev": true,
+      "optional": true,
       "requires": {
         "ip": "1.1.5",
         "smart-buffer": "1.1.15"
@@ -9812,6 +9864,7 @@
       "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-2.1.1.tgz",
       "integrity": "sha512-sFtmYqdUK5dAMh85H0LEVFUCO7OhJJe1/z2x/Z6mxp3s7/QPf1RkZmpZy+BpuU0bEjcV9npqKjq9Y3kwFUjnxw==",
       "dev": true,
+      "optional": true,
       "requires": {
         "agent-base": "2.1.1",
         "extend": "3.0.1",
@@ -10718,6 +10771,7 @@
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
+      "optional": true,
       "requires": {
         "prelude-ls": "1.1.2"
       }
@@ -10825,7 +10879,8 @@
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz",
       "integrity": "sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "union-value": {
       "version": "1.0.0",
@@ -12458,6 +12513,7 @@
       "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
       "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
       "dev": true,
+      "optional": true,
       "requires": {
         "string-width": "1.0.2"
       }
diff --git a/package.json b/package.json
index d6493df..6baf5c2 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "jasmine-core": "~3.1.0",
     "jasmine-spec-reporter": "~4.2.1",
     "karma": "~2.0.0",
-    "karma-chrome-launcher": "~2.2.0",
+    "karma-chrome-launcher": "~3.0.0",
     "karma-coverage-istanbul-reporter": "^1.2.1",
     "karma-jasmine": "~1.1.0",
     "karma-jasmine-html-reporter": "^0.2.2",