diff --git a/app/package.json b/app/package.json
index d3d3af1..839de86 100644
--- a/app/package.json
+++ b/app/package.json
@@ -21,7 +21,7 @@
     "eslint-watch": "^3.1.2",
     "grunt": "^1.0.1",
     "grunt-cli": "1.4.3",
-    "grunt-contrib-concat": "^1.0.1",
+    "grunt-contrib-concat": "^2.0.0",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-less": "^1.4.1",
     "grunt-contrib-watch": "1.1.0",
diff --git a/app/yarn.lock b/app/yarn.lock
index 3fdb6c6..0534cc1 100644
--- a/app/yarn.lock
+++ b/app/yarn.lock
@@ -128,6 +128,13 @@ ansi-styles@^3.1.0:
   dependencies:
     color-convert "^1.0.0"
 
+ansi-styles@^4.1.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
+  integrity sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==
+  dependencies:
+    color-convert "^2.0.1"
+
 ansi-styles@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
@@ -864,6 +871,14 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0:
     escape-string-regexp "^1.0.5"
     supports-color "^4.0.0"
 
+chalk@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01"
+  integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
+  dependencies:
+    ansi-styles "^4.1.0"
+    supports-color "^7.1.0"
+
 chokidar@^1.4.2, chokidar@^1.4.3, chokidar@^1.6.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
@@ -968,10 +983,22 @@ color-convert@^1.0.0:
   dependencies:
     color-name "^1.1.1"
 
+color-convert@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
+  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
+  dependencies:
+    color-name "~1.1.4"
+
 color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
+color-name@~1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
+  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
+
 colors@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
@@ -2013,11 +2040,12 @@ grunt-cli@~1.2.0:
     nopt "~3.0.6"
     resolve "~1.1.0"
 
-grunt-contrib-concat@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/grunt-contrib-concat/-/grunt-contrib-concat-1.0.1.tgz#61509863084e871d7e86de48c015259ed97745bd"
+grunt-contrib-concat@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-concat/-/grunt-contrib-concat-2.1.0.tgz#9ac62117a18b48d1bfccb3eef46c960bbd163d75"
+  integrity sha512-Vnl95JIOxfhEN7bnYIlCgQz41kkbi7tsZ/9a4usZmxNxi1S2YAIOy8ysFmO8u4MN26Apal1O106BwARdaNxXQw==
   dependencies:
-    chalk "^1.0.0"
+    chalk "^4.1.2"
     source-map "^0.5.3"
 
 grunt-contrib-copy@^1.0.0:
@@ -2130,6 +2158,11 @@ has-flag@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
 
+has-flag@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-4.0.0.tgz#944771fd9c81c81265c4d6941860da06bb59479b"
+  integrity sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==
+
 has-symbols@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.2.tgz#165d3070c00309752a1236a479331e3ac56f1423"
@@ -2299,12 +2332,7 @@ inherits@2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
-ini@^1.3.4:
-  version "1.3.8"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
-  integrity sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==
-
-ini@~1.3.0:
+ini@^1.3.4, ini@~1.3.0:
   version "1.3.8"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
   integrity sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==
@@ -4253,6 +4281,13 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
+supports-color@^7.1.0:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-7.2.0.tgz#1b7dcdcb32b8138801b3e478ba6a51caa89648da"
+  integrity sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==
+  dependencies:
+    has-flag "^4.0.0"
+
 symbol-observable@^0.2.2:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"