diff --git a/package-lock.json b/package-lock.json
index b93f9f7..728c226 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1234,13 +1234,13 @@
       }
     },
     "concurrently": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-4.1.2.tgz",
-      "integrity": "sha512-Kim9SFrNr2jd8/0yNYqDTFALzUX1tvimmwFWxmp/D4mRI+kbqIIwE2RkBDrxS2ic25O1UgQMI5AtBqdtX3ynYg==",
+      "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": "^2.4.2",
-        "date-fns": "^1.30.1",
+        "date-fns": "^2.0.1",
         "lodash": "^4.17.15",
         "read-pkg": "^4.0.1",
         "rxjs": "^6.5.2",
@@ -1387,9 +1387,9 @@
       "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": {
diff --git a/package.json b/package.json
index 777f9b0..8fcb0c0 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "@types/sinon": "^7.0.13",
     "@types/sinon-chai": "^3.2.3",
     "chai": "^4.2.0",
-    "concurrently": "^4.1.2",
+    "concurrently": "^5.0.0",
     "glob": "^7.1.4",
     "istanbul": "^0.4.5",
     "lolex": "^4.2.0",