diff --git a/package-lock.json b/package-lock.json
index 6a85669..0f8c0f0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -731,6 +731,12 @@
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@@ -11118,6 +11651,12 @@
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+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
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+    },
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@@ -11299,6 +11838,12 @@
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+    "ua-parser-js": {
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+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.32.tgz",
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@@ -11319,12 +11864,6 @@
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-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
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@@ -11485,16 +12024,6 @@
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-      "resolved": "https://registry.npmjs.org/useragent/-/useragent-2.3.0.tgz",
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@@ -11569,7 +12098,7 @@
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@@ -12128,15 +12657,10 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
-      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
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-      "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
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+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
+      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
+      "dev": true
     },
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diff --git a/package.json b/package.json
index fa7c0b0..8e4c195 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
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         "jasmine-core": "~2.99.1",
         "jasmine-spec-reporter": "~4.2.1",
-        "karma": "~4.0.0",
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         "karma-chrome-launcher": "~2.2.0",
         "karma-coverage-istanbul-reporter": "~2.0.1",
         "karma-jasmine": "~1.1.2",