diff --git a/app/package.json b/app/package.json
index c583a8344d2..0848522928b 100644
--- a/app/package.json
+++ b/app/package.json
@@ -22,7 +22,7 @@
     "byline": "^5.0.0",
     "chalk": "^2.3.0",
     "classnames": "^2.2.5",
-    "codemirror": "^5.60.0",
+    "codemirror": "^6.0.0",
     "codemirror-mode-elixir": "^1.1.2",
     "compare-versions": "^3.6.0",
     "deep-equal": "^1.0.1",
diff --git a/app/yarn.lock b/app/yarn.lock
index 2bc423246d8..5dd0cf77527 100644
--- a/app/yarn.lock
+++ b/app/yarn.lock
@@ -16,6 +16,73 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
+"@codemirror/autocomplete@^6.0.0":
+  version "6.18.6"
+  resolved "https://registry.yarnpkg.com/@codemirror/autocomplete/-/autocomplete-6.18.6.tgz#de26e864a1ec8192a1b241eb86addbb612964ddb"
+  integrity sha512-PHHBXFomUs5DF+9tCOM/UoW6XQ4R44lLNNhRaW9PKPTU0D7lIjRg3ElxaJnTwsl/oHiR93WSXDBrekhoUGCPtg==
+  dependencies:
+    "@codemirror/language" "^6.0.0"
+    "@codemirror/state" "^6.0.0"
+    "@codemirror/view" "^6.17.0"
+    "@lezer/common" "^1.0.0"
+
+"@codemirror/commands@^6.0.0":
+  version "6.8.1"
+  resolved "https://registry.yarnpkg.com/@codemirror/commands/-/commands-6.8.1.tgz#639f5559d2f33f2582a2429c58cb0c1b925c7a30"
+  integrity sha512-KlGVYufHMQzxbdQONiLyGQDUW0itrLZwq3CcY7xpv9ZLRHqzkBSoteocBHtMCoY7/Ci4xhzSrToIeLg7FxHuaw==
+  dependencies:
+    "@codemirror/language" "^6.0.0"
+    "@codemirror/state" "^6.4.0"
+    "@codemirror/view" "^6.27.0"
+    "@lezer/common" "^1.1.0"
+
+"@codemirror/language@^6.0.0":
+  version "6.11.3"
+  resolved "https://registry.yarnpkg.com/@codemirror/language/-/language-6.11.3.tgz#8e6632df566a7ed13a1bd307f9837765bb1abfdd"
+  integrity sha512-9HBM2XnwDj7fnu0551HkGdrUrrqmYq/WC5iv6nbY2WdicXdGbhR/gfbZOH73Aqj4351alY1+aoG9rCNfiwS1RA==
+  dependencies:
+    "@codemirror/state" "^6.0.0"
+    "@codemirror/view" "^6.23.0"
+    "@lezer/common" "^1.1.0"
+    "@lezer/highlight" "^1.0.0"
+    "@lezer/lr" "^1.0.0"
+    style-mod "^4.0.0"
+
+"@codemirror/lint@^6.0.0":
+  version "6.8.5"
+  resolved "https://registry.yarnpkg.com/@codemirror/lint/-/lint-6.8.5.tgz#9edaa808e764e28e07665b015951934c8ec3a418"
+  integrity sha512-s3n3KisH7dx3vsoeGMxsbRAgKe4O1vbrnKBClm99PU0fWxmxsx5rR2PfqQgIt+2MMJBHbiJ5rfIdLYfB9NNvsA==
+  dependencies:
+    "@codemirror/state" "^6.0.0"
+    "@codemirror/view" "^6.35.0"
+    crelt "^1.0.5"
+
+"@codemirror/search@^6.0.0":
+  version "6.5.11"
+  resolved "https://registry.yarnpkg.com/@codemirror/search/-/search-6.5.11.tgz#a324ffee36e032b7f67aa31c4fb9f3e6f9f3ed63"
+  integrity sha512-KmWepDE6jUdL6n8cAAqIpRmLPBZ5ZKnicE8oGU/s3QrAVID+0VhLFrzUucVKHG5035/BSykhExDL/Xm7dHthiA==
+  dependencies:
+    "@codemirror/state" "^6.0.0"
+    "@codemirror/view" "^6.0.0"
+    crelt "^1.0.5"
+
+"@codemirror/state@^6.0.0", "@codemirror/state@^6.4.0", "@codemirror/state@^6.5.0":
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/@codemirror/state/-/state-6.5.2.tgz#8eca3a64212a83367dc85475b7d78d5c9b7076c6"
+  integrity sha512-FVqsPqtPWKVVL3dPSxy8wEF/ymIEuVzF1PK3VbUgrxXpJUSHQWWZz4JMToquRxnkw+36LTamCZG2iua2Ptq0fA==
+  dependencies:
+    "@marijn/find-cluster-break" "^1.0.0"
+
+"@codemirror/view@^6.0.0", "@codemirror/view@^6.17.0", "@codemirror/view@^6.23.0", "@codemirror/view@^6.27.0", "@codemirror/view@^6.35.0":
+  version "6.38.1"
+  resolved "https://registry.yarnpkg.com/@codemirror/view/-/view-6.38.1.tgz#74214434351719ec0710431363a85f7a01e80a73"
+  integrity sha512-RmTOkE7hRU3OVREqFVITWHz6ocgBjv08GoePscAakgVQfciA3SGCEk7mb9IzwW61cKKmlTpHXG6DUE5Ubx+MGQ==
+  dependencies:
+    "@codemirror/state" "^6.5.0"
+    crelt "^1.0.6"
+    style-mod "^4.1.0"
+    w3c-keyname "^2.2.4"
+
 "@colors/colors@1.5.0":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/@colors/colors/-/colors-1.5.0.tgz#bb504579c1cae923e6576a4f5da43d25f97bdbd9"
@@ -53,6 +120,30 @@
   resolved "https://registry.yarnpkg.com/@icons/material/-/material-0.2.4.tgz#e90c9f71768b3736e76d7dd6783fc6c2afa88bc8"
   integrity sha512-QPcGmICAPbGLGb6F/yNf/KzKqvFx8z5qx3D1yFqVAjoFmXK35EgyW+cJ57Te3CNsmzblwtzakLGFqHPqrfb4Tw==
 
+"@lezer/common@^1.0.0", "@lezer/common@^1.1.0":
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/@lezer/common/-/common-1.2.3.tgz#138fcddab157d83da557554851017c6c1e5667fd"
+  integrity sha512-w7ojc8ejBqr2REPsWxJjrMFsA/ysDCFICn8zEOR9mrqzOu2amhITYuLD8ag6XZf0CFXDrhKqw7+tW8cX66NaDA==
+
+"@lezer/highlight@^1.0.0":
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/@lezer/highlight/-/highlight-1.2.1.tgz#596fa8f9aeb58a608be0a563e960c373cbf23f8b"
+  integrity sha512-Z5duk4RN/3zuVO7Jq0pGLJ3qynpxUVsh7IbUbGj88+uV2ApSAn6kWg2au3iJb+0Zi7kKtqffIESgNcRXWZWmSA==
+  dependencies:
+    "@lezer/common" "^1.0.0"
+
+"@lezer/lr@^1.0.0":
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/@lezer/lr/-/lr-1.4.2.tgz#931ea3dea8e9de84e90781001dae30dea9ff1727"
+  integrity sha512-pu0K1jCIdnQ12aWNaAVU5bzi7Bd1w54J3ECgANPmYLtQKP0HBj2cE/5coBD66MT10xbtIuUr7tg0Shbsvk0mDA==
+  dependencies:
+    "@lezer/common" "^1.0.0"
+
+"@marijn/find-cluster-break@^1.0.0":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@marijn/find-cluster-break/-/find-cluster-break-1.0.2.tgz#775374306116d51c0c500b8c4face0f9a04752d8"
+  integrity sha512-l0h88YhZFyKdXIFNfSWpyjStDjGHwZ/U7iobcK1cQQD8sejsONdQtTVU+1wVN1PBw40PiiHB1vA5S7VTfQiP9g==
+
 accessibility-developer-tools@^2.11.0:
   version "2.12.0"
   resolved "https://registry.yarnpkg.com/accessibility-developer-tools/-/accessibility-developer-tools-2.12.0.tgz#3da0cce9d6ec6373964b84f35db7cfc3df7ab514"
@@ -182,10 +273,18 @@ codemirror-mode-elixir@^1.1.2:
   resolved "https://registry.yarnpkg.com/codemirror-mode-elixir/-/codemirror-mode-elixir-1.1.2.tgz#61227208d2684d928500af6934e4b9c995fb0960"
   integrity sha512-1oIuRVHyUhLv0Za9sEIsI7urAj06EohwO/yVj10bg7aHnimHQ964Wk3uuoPH0Yn8L38EkOd+SwULYpDiCQtoTA==
 
-codemirror@^5.60.0:
-  version "5.60.0"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.60.0.tgz#00a8cfd287d5d8737ceb73987f04aee2fe5860da"
-  integrity sha512-AEL7LhFOlxPlCL8IdTcJDblJm8yrAGib7I+DErJPdZd4l6imx8IMgKK3RblVgBQqz3TZJR4oknQ03bz+uNjBYA==
+codemirror@^6.0.0:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-6.0.2.tgz#4d3fea1ad60b6753f97ca835f2f48c6936a8946e"
+  integrity sha512-VhydHotNW5w1UGK0Qj96BwSk/Zqbp9WbnyK2W/eVMv4QyF41INRGpjUhFJY7/uDNuudSc33a/PKr4iDqRduvHw==
+  dependencies:
+    "@codemirror/autocomplete" "^6.0.0"
+    "@codemirror/commands" "^6.0.0"
+    "@codemirror/language" "^6.0.0"
+    "@codemirror/lint" "^6.0.0"
+    "@codemirror/search" "^6.0.0"
+    "@codemirror/state" "^6.0.0"
+    "@codemirror/view" "^6.0.0"
 
 color-convert@^1.9.0:
   version "1.9.0"
@@ -265,6 +364,11 @@ core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.3.tgz#a6042d3634c2b27e9328f837b965fac83808db85"
   integrity sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==
 
+crelt@^1.0.5, crelt@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/crelt/-/crelt-1.0.6.tgz#7cc898ea74e190fb6ef9dae57f8f81cf7302df72"
+  integrity sha512-VQ2MBenTq1fWZUH9DJNGti7kKv6EeAuYr3cLwxUWhIu1baTaXh4Ib5W2CqHVqib4/MqbYGJqiL3Zb8GJZr3l4g==
+
 cross-spawn@^6.0.0:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
@@ -1502,6 +1606,11 @@ strip-json-comments@~2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
+style-mod@^4.0.0, style-mod@^4.1.0:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/style-mod/-/style-mod-4.1.2.tgz#ca238a1ad4786520f7515a8539d5a63691d7bf67"
+  integrity sha512-wnD1HyVqpJUI2+eKZ+eo1UwghftP6yuFheBqqe+bWCotBjC2K1YnteJILRMs3SM4V/0dLEW1SC27MWP5y+mwmw==
+
 supports-color@^4.0.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.4.0.tgz#883f7ddabc165142b2a61427f3352ded195d1a3e"
@@ -1634,6 +1743,11 @@ uuid@^8.3.2:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-8.3.2.tgz#80d5b5ced271bb9af6c445f21a1a04c606cefbe2"
   integrity sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==
 
+w3c-keyname@^2.2.4:
+  version "2.2.8"
+  resolved "https://registry.yarnpkg.com/w3c-keyname/-/w3c-keyname-2.2.8.tgz#7b17c8c6883d4e8b86ac8aba79d39e880f8869c5"
+  integrity sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==
+
 warning@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/warning/-/warning-3.0.0.tgz#32e5377cb572de4ab04753bdf8821c01ed605b7c"