diff --git a/package-lock.json b/package-lock.json
index 480fa7f..a201fc9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1255,20 +1255,28 @@
       }
     },
     "concurrently": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-4.1.0.tgz",
-      "integrity": "sha512-pwzXCE7qtOB346LyO9eFWpkFJVO3JQZ/qU/feGeaAHiX1M3Rw3zgXKc5cZ8vSH5DGygkjzLFDzA/pwoQDkRNGg==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-5.0.0.tgz",
+      "integrity": "sha512-1yDvK8mduTIdxIxV9C60KoiOySUl/lfekpdbI+U5GXaPrgdffEavFa9QZB3vh68oWOpbCC+TuvxXV9YRPMvUrA==",
       "dev": true,
       "requires": {
-        "chalk": "^2.4.1",
-        "date-fns": "^1.23.0",
-        "lodash": "^4.17.10",
+        "chalk": "^2.4.2",
+        "date-fns": "^2.0.1",
+        "lodash": "^4.17.15",
         "read-pkg": "^4.0.1",
-        "rxjs": "^6.3.3",
+        "rxjs": "^6.5.2",
         "spawn-command": "^0.0.2-1",
         "supports-color": "^4.5.0",
-        "tree-kill": "^1.1.0",
-        "yargs": "^12.0.1"
+        "tree-kill": "^1.2.1",
+        "yargs": "^12.0.5"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        }
       }
     },
     "config-chain": {
@@ -1427,9 +1435,9 @@
       "dev": true
     },
     "date-fns": {
-      "version": "1.30.1",
-      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-1.30.1.tgz",
-      "integrity": "sha512-hBSVCvSmWC+QypYObzwGOd9wqdDpOt+0wl0KbU+R+uuZBS1jN8VsD1ss3irQDknRj5NvxiTF6oj/nDRnN/UQNw==",
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.4.1.tgz",
+      "integrity": "sha512-2RhmH/sjDSCYW2F3ZQxOUx/I7PvzXpi89aQL2d3OAxSTwLx6NilATeUbe0menFE3Lu5lFkOFci36ivimwYHHxw==",
       "dev": true
     },
     "date-now": {
@@ -2206,7 +2214,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2621,7 +2630,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2677,6 +2687,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2720,12 +2731,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -3028,9 +3041,9 @@
       }
     },
     "hosted-git-info": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
-      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "version": "2.8.4",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.4.tgz",
+      "integrity": "sha512-pzXIvANXEFrc5oFFXRMkbLPQ2rXRoDERwDLyrcUxGhaZhgP54BBSl9Oheh7Vv0T090cszWBxPjkQQ5Sq1PbBRQ==",
       "dev": true
     },
     "http-cache-semantics": {
@@ -5274,9 +5287,9 @@
       }
     },
     "rxjs": {
-      "version": "6.4.0",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.4.0.tgz",
-      "integrity": "sha512-Z9Yfa11F6B9Sg/BK9MnqnQ+aQYicPLtilXBp2yUtDt2JRCE0h26d33EnfO3ZxoNxG0T92OUucP3Ct7cpfkdFfw==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.3.tgz",
+      "integrity": "sha512-wuYsAYYFdWTAnAaPoKGNhfpWwKZbJW+HgAJ+mImp+Epl7BG8oNWBCTyRM8gba9k4lk8BgWdoYm21Mo/RYhhbgA==",
       "dev": true,
       "requires": {
         "tslib": "^1.9.0"
@@ -5680,9 +5693,9 @@
       }
     },
     "spdx-license-ids": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.3.tgz",
-      "integrity": "sha512-uBIcIl3Ih6Phe3XHK1NqboJLdGfwr1UN3k6wSD1dZpmPsIkb8AGNbZYJ1fOBk834+Gxy8rpfDxrS6XLEMZMY2g==",
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz",
+      "integrity": "sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==",
       "dev": true
     },
     "split-string": {
diff --git a/package.json b/package.json
index 22e1ca2..d4f8ca5 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "@types/sinon-chai": "^3.2.2",
     "chai": "^4.2.0",
     "chokidar-cli": "^1.2.2",
-    "concurrently": "^4.1.0",
+    "concurrently": "^5.0.0",
     "glob": "^7.1.3",
     "istanbul": "^0.4.5",
     "lolex": "^4.0.1",