diff --git a/package-lock.json b/package-lock.json
index c76c4b7e..53b666c2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2604,37 +2604,46 @@
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     },
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-      "version": "11.3.2",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-11.3.2.tgz",
-      "integrity": "sha512-E0zP4EPGDOaT2chM08Als91eYnf8Z+eH1awwwVsngUmgppfM5jjJ8l3z5vO5p5w/I3LsiXawb1sW0VY65pQABg==",
+      "version": "12.0.2",
+      "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.2.tgz",
+      "integrity": "sha512-ifKgxH2CKhJEg6tNdAwziu6Q33EvuG26tYcda6PT3WKisZcYDXsnEdnRv67Po3yCzFfaSoMjGZzJyD2c3DT1dg==",
       "dev": true,
       "requires": {
-        "bluebird": "^3.5.3",
+        "bluebird": "^3.5.5",
         "chownr": "^1.1.1",
         "figgy-pudding": "^3.5.1",
-        "glob": "^7.1.3",
+        "glob": "^7.1.4",
         "graceful-fs": "^4.1.15",
+        "infer-owner": "^1.0.3",
         "lru-cache": "^5.1.1",
         "mississippi": "^3.0.0",
         "mkdirp": "^0.5.1",
         "move-concurrently": "^1.0.1",
         "promise-inflight": "^1.0.1",
-        "rimraf": "^2.6.2",
+        "rimraf": "^2.6.3",
         "ssri": "^6.0.1",
         "unique-filename": "^1.1.1",
         "y18n": "^4.0.0"
       },
       "dependencies": {
-        "bluebird": {
-          "version": "3.5.3",
-          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
-          "integrity": "sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==",
-          "dev": true
+        "glob": {
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
+          "integrity": "sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
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         "graceful-fs": {
-          "version": "4.1.15",
-          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.15.tgz",
-          "integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==",
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.0.tgz",
+          "integrity": "sha512-jpSvDPV4Cq/bgtpndIWbI5hmYxhQGHPC4d4cqBPb4DLniCfhJokdXhwhaDuLBGLQdvvRum/UiX6ECVIPvDXqdg==",
           "dev": true
         },
         "lru-cache": {
@@ -2646,6 +2655,15 @@
             "yallist": "^3.0.2"
           }
         },
+        "rimraf": {
+          "version": "2.6.3",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
+          "integrity": "sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==",
+          "dev": true,
+          "requires": {
+            "glob": "^7.1.3"
+          }
+        },
         "yallist": {
           "version": "3.0.3",
           "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
@@ -7051,6 +7069,12 @@
       "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=",
       "dev": true
     },
+    "infer-owner": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/infer-owner/-/infer-owner-1.0.4.tgz",
+      "integrity": "sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==",
+      "dev": true
+    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -13983,14 +14007,14 @@
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-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.0.0.tgz",
-      "integrity": "sha512-dOapGTU0hETFl1tCo4t56FN+2jffoKyER9qBGoUFyZ6y7WLoKT0bF+lAYi6B6YsILcGF3q1C2FBh8QcKSCgkgA==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.1.2.tgz",
+      "integrity": "sha512-jvNoEQSPXJdssFwqPSgWjsOrb+ELoE+ILpHPKXC83tIxOlh2U75F1KuB2luLD/3a6/7K3Vw5pDn+hvu0C4AzSw==",
       "dev": true,
       "requires": {
-        "commander": "^2.19.0",
+        "commander": "^2.20.0",
         "source-map": "~0.6.1",
-        "source-map-support": "~0.5.10"
+        "source-map-support": "~0.5.12"
       },
       "dependencies": {
         "commander": {
@@ -14004,34 +14028,23 @@
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           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
-        },
-        "source-map-support": {
-          "version": "0.5.12",
-          "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.12.tgz",
-          "integrity": "sha512-4h2Pbvyy15EE02G+JOZpUCmqWJuqrs+sEkzewTm++BPi7Hvn/HwcqLAcNxYAyI0x13CpPPn+kMjl+hplXMHITQ==",
-          "dev": true,
-          "requires": {
-            "buffer-from": "^1.0.0",
-            "source-map": "^0.6.0"
-          }
         }
       }
     },
     "terser-webpack-plugin": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.3.0.tgz",
-      "integrity": "sha512-W2YWmxPjjkUcOWa4pBEv4OP4er1aeQJlSo2UhtCFQCuRXEHjOFscO8VyWHj9JLlA0RzQb8Y2/Ta78XZvT54uGg==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.4.1.tgz",
+      "integrity": "sha512-ZXmmfiwtCLfz8WKZyYUuuHf3dMYEjg8NrjHMb0JqHVHVOSkzp3cW2/XG1fP3tRhqEqSzMwzzRQGtAPbs4Cncxg==",
       "dev": true,
       "requires": {
-        "cacache": "^11.3.2",
-        "find-cache-dir": "^2.0.0",
+        "cacache": "^12.0.2",
+        "find-cache-dir": "^2.1.0",
         "is-wsl": "^1.1.0",
-        "loader-utils": "^1.2.3",
         "schema-utils": "^1.0.0",
         "serialize-javascript": "^1.7.0",
         "source-map": "^0.6.1",
-        "terser": "^4.0.0",
-        "webpack-sources": "^1.3.0",
+        "terser": "^4.1.2",
+        "webpack-sources": "^1.4.0",
         "worker-farm": "^1.7.0"
       },
       "dependencies": {
@@ -14042,9 +14055,9 @@
           "dev": true
         },
         "webpack-sources": {
-          "version": "1.3.0",
-          "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.3.0.tgz",
-          "integrity": "sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==",
+          "version": "1.4.0",
+          "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.0.tgz",
+          "integrity": "sha512-1e4Cxgqfl8vnDhXMMpegX7JWWP7HwV8Kp8/Oefs6EG52bRtOR9vuOXM1Gl1vy6NwHfUxHeuR6ElD4HamuRPO0A==",
           "dev": true,
           "requires": {
             "source-list-map": "^2.0.0",
diff --git a/package.json b/package.json
index daaf6762..6782d0b0 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "script-ext-html-webpack-plugin": "2.1.4",
     "source-map-loader": "0.2.4",
     "style-loader": "0.23.1",
-    "terser-webpack-plugin": "1.3.0",
+    "terser-webpack-plugin": "1.4.1",
     "travis-size-report": "1.1.0",
     "ts-loader": "6.0.3",
     "tslint": "5.17.0",