diff --git a/package-lock.json b/package-lock.json
index 2f529b8..4edaa9a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -169,6 +169,13 @@
         "@phosphor/widgets": "^1.8.0",
         "codemirror": "~5.47.0",
         "react": "~16.8.4"
+      },
+      "dependencies": {
+        "codemirror": {
+          "version": "5.47.0",
+          "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.47.0.tgz",
+          "integrity": "sha512-kV49Fr+NGFHFc/Imsx6g180hSlkGhuHxTSDDmDHOuyln0MQYFLixDY4+bFkBVeCEiepYfDimAF/e++9jPJk4QA=="
+        }
       }
     },
     "@jupyterlab/coreutils": {
@@ -598,9 +605,9 @@
       "integrity": "sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q=="
     },
     "codemirror": {
-      "version": "5.47.0",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.47.0.tgz",
-      "integrity": "sha512-kV49Fr+NGFHFc/Imsx6g180hSlkGhuHxTSDDmDHOuyln0MQYFLixDY4+bFkBVeCEiepYfDimAF/e++9jPJk4QA=="
+      "version": "5.61.1",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.61.1.tgz",
+      "integrity": "sha512-+D1NZjAucuzE93vJGbAaXzvoBHwp9nJZWWWF9utjv25+5AZUiah6CIlfb4ikG4MoDsFsCG8niiJH5++OO2LgIQ=="
     },
     "color-convert": {
       "version": "1.9.3",
@@ -958,9 +965,9 @@
       "integrity": "sha512-w010cY1oCUmI+9KwwlWki+r5jxKfTFDVoadl7MSrIujHU5MJ5OR6HTDj6Xo8aoR/QsA56x8jKjA59qGH4ELtrA=="
     },
     "postcss": {
-      "version": "7.0.17",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.17.tgz",
-      "integrity": "sha512-546ZowA+KZ3OasvQZHsbuEpysvwTZNGJv9EfyCQdsIDltPSWHAeTQ5fQy/Npi2ZDtLI3zs7Ps/p6wThErhm9fQ==",
+      "version": "7.0.36",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.36.tgz",
+      "integrity": "sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==",
       "requires": {
         "chalk": "^2.4.2",
         "source-map": "^0.6.1",
diff --git a/yarn.lock b/yarn.lock
index 1871c1a..e370897 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -447,11 +447,30 @@
     "@phosphor/signaling" "^1.2.3"
     "@phosphor/virtualdom" "^1.1.3"
 
+"@types/codemirror@0.0.76":
+  version "0.0.76"
+  resolved "https://registry.yarnpkg.com/@types/codemirror/-/codemirror-0.0.76.tgz#c52719878056a216bc05889b46a41d4eb1434423"
+  integrity sha512-k/hpUb+Ebyn9z63qM8IbsRiW0eYHZ+pi/1e2reGzBKAZJzkjWmNTXXqLLiNv5d9ekyxkajxRBr5Hu2WZq/nokw==
+  dependencies:
+    "@types/tern" "*"
+
 "@types/dom4@^2.0.1":
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/@types/dom4/-/dom4-2.0.1.tgz#506d5781b9bcab81bd9a878b198aec7dee2a6033"
   integrity sha512-kSkVAvWmMZiCYtvqjqQEwOmvKwcH+V4uiv3qPQ8pAh1Xl39xggGEo8gHUqV4waYGHezdFw0rKBR8Jt0CrQSDZA==
 
+"@types/estree@*":
+  version "0.0.48"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.48.tgz#18dc8091b285df90db2f25aa7d906cfc394b7f74"
+  integrity sha512-LfZwXoGUDo0C3me81HXgkBg5CTQYb6xzEl+fNmbO4JdRiSKQ8A0GD1OBBvKAIsbCUgoyAty7m99GqqMQe784ew==
+
+"@types/jquery@^3.3.30":
+  version "3.5.5"
+  resolved "https://registry.yarnpkg.com/@types/jquery/-/jquery-3.5.5.tgz#2c63f47c9c8d96693d272f5453602afd8338c903"
+  integrity sha512-6RXU9Xzpc6vxNrS6FPPapN1SxSHgQ336WC6Jj/N8q30OiaBZ00l1GBgeP7usjVZPivSkGUfL1z/WW6TX989M+w==
+  dependencies:
+    "@types/sizzle" "*"
+
 "@types/prop-types@*":
   version "15.7.1"
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.1.tgz#f1a11e7babb0c3cad68100be381d1e064c68f1f6"
@@ -465,6 +484,18 @@
     "@types/prop-types" "*"
     csstype "^2.2.0"
 
+"@types/sizzle@*":
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/@types/sizzle/-/sizzle-2.3.3.tgz#ff5e2f1902969d305225a047c8a0fd5c915cebef"
+  integrity sha512-JYM8x9EGF163bEyhdJBpR2QX1R5naCJHC8ucJylJ3w9/CVBaskdQ8WqBf8MmQrd1kRvp/a4TS8HJ+bxzR7ZJYQ==
+
+"@types/tern@*":
+  version "0.23.3"
+  resolved "https://registry.yarnpkg.com/@types/tern/-/tern-0.23.3.tgz#4b54538f04a88c9ff79de1f6f94f575a7f339460"
+  integrity sha512-imDtS4TAoTcXk0g7u4kkWqedB3E4qpjXzCpD2LU5M5NAXHzCDsypyvXSaG7mM8DKYkCRa7tFp4tS/lp/Wo7Q3w==
+  dependencies:
+    "@types/estree" "*"
+
 ajv@^6.5.5:
   version "6.10.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.2.tgz#d3cea04d6b017b2894ad69040fec8b623eb4bd52"
@@ -524,6 +555,11 @@ classnames@^2.2:
   resolved "https://registry.yarnpkg.com/classnames/-/classnames-2.2.6.tgz#43935bffdd291f326dad0a205309b38d00f650ce"
   integrity sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q==
 
+codemirror@^5.48.2:
+  version "5.61.1"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.61.1.tgz#ccfc8a43b8fcfb8b12e8e75b5ffde48d541406e0"
+  integrity sha512-+D1NZjAucuzE93vJGbAaXzvoBHwp9nJZWWWF9utjv25+5AZUiah6CIlfb4ikG4MoDsFsCG8niiJH5++OO2LgIQ==
+
 codemirror@~5.47.0:
   version "5.47.0"
   resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.47.0.tgz#c13a521ae5660d3acc655af252f4955065293789"
@@ -726,6 +762,11 @@ isomorphic-fetch@^2.1.1:
     node-fetch "^1.0.1"
     whatwg-fetch ">=0.10.0"
 
+jquery@^3.4.1:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.6.0.tgz#c72a09f15c1bdce142f49dbf1170bdf8adac2470"
+  integrity sha512-JVzAR/AjBvVt2BmYhxRCSYysDsPcssdmTFnzyLEts9qNwmjmu4JTAMYubEfwVOSwpQ1I1sKKFcxhZCI2buerfw==
+
 "js-tokens@^3.0.0 || ^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -853,9 +894,9 @@ popper.js@^1.14.1, popper.js@^1.14.4:
   integrity sha512-w010cY1oCUmI+9KwwlWki+r5jxKfTFDVoadl7MSrIujHU5MJ5OR6HTDj6Xo8aoR/QsA56x8jKjA59qGH4ELtrA==
 
 postcss@^7.0.5:
-  version "7.0.17"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.17.tgz#4da1bdff5322d4a0acaab4d87f3e782436bad31f"
-  integrity sha512-546ZowA+KZ3OasvQZHsbuEpysvwTZNGJv9EfyCQdsIDltPSWHAeTQ5fQy/Npi2ZDtLI3zs7Ps/p6wThErhm9fQ==
+  version "7.0.36"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.36.tgz#056f8cffa939662a8f5905950c07d5285644dfcb"
+  integrity sha512-BebJSIUMwJHRH0HAQoxN4u1CN86glsrwsW0q7T+/m44eXOUAxSNdHRkNZPYz5vVUbg17hFgOQDE7fZk7li3pZw==
   dependencies:
     chalk "^2.4.2"
     source-map "^0.6.1"