diff --git a/package.json b/package.json
index f6443fc..2348d8f 100644
--- a/package.json
+++ b/package.json
@@ -72,7 +72,7 @@
     "katex": "^0.11.1",
     "lodash": "^4.17.15",
     "moment": "^2.24.0",
-    "netlify-cms-app": "^2.11.25",
+    "netlify-cms-app": "^2.11.27",
     "node-sass": "^4.13.1",
     "normalize-scss": "^7.0.1",
     "prismjs": "^1.19.0",
diff --git a/yarn.lock b/yarn.lock
index 75f9686..8017a74 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11802,27 +11802,27 @@ neo-async@^2.5.0, neo-async@^2.6.1:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
   integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
 
-netlify-cms-app@^2.11.25:
-  version "2.11.25"
-  resolved "https://registry.yarnpkg.com/netlify-cms-app/-/netlify-cms-app-2.11.25.tgz#7dea5d85a256072e00d7846bd3f1c778e4fd7e2d"
-  integrity sha512-k9X/0cYx9sFwNZG/Enu4vLHGNZefFmXcBLNX1g0Y13W3MUcFEPeZm1f0L+azgpxpcLA3RiNuIQXdQVkygyxuyw==
+netlify-cms-app@^2.11.27:
+  version "2.11.27"
+  resolved "https://registry.yarnpkg.com/netlify-cms-app/-/netlify-cms-app-2.11.27.tgz#90c5bba36a4d3b27392e9847b34c5e6402893fdc"
+  integrity sha512-Is5bGExYQyLhSNrHz2SfXnpMl/TsR1OW8idDcZGbuRrmkS9RkJm//WhjpqFSs0DN65kgaMYWLYZzMZcxYpiPWg==
   dependencies:
     "@emotion/core" "^10.0.9"
     "@emotion/styled" "^10.0.9"
     immutable "^3.7.6"
     lodash "^4.17.11"
     moment "^2.24.0"
-    netlify-cms-backend-bitbucket "^2.11.0"
-    netlify-cms-backend-git-gateway "^2.9.0"
-    netlify-cms-backend-github "^2.9.1"
-    netlify-cms-backend-gitlab "^2.8.0"
-    netlify-cms-backend-test "^2.7.2"
-    netlify-cms-core "^2.20.0"
+    netlify-cms-backend-bitbucket "^2.11.1"
+    netlify-cms-backend-git-gateway "^2.9.1"
+    netlify-cms-backend-github "^2.9.3"
+    netlify-cms-backend-gitlab "^2.8.1"
+    netlify-cms-backend-test "^2.7.3"
+    netlify-cms-core "^2.21.0"
     netlify-cms-editor-component-image "^2.6.2"
     netlify-cms-lib-auth "^2.2.7"
     netlify-cms-lib-util "^2.8.0"
-    netlify-cms-locales "^1.9.2"
-    netlify-cms-ui-default "^2.9.1"
+    netlify-cms-locales "^1.9.3"
+    netlify-cms-ui-default "^2.9.2"
     netlify-cms-widget-boolean "^2.3.0"
     netlify-cms-widget-code "^1.1.3"
     netlify-cms-widget-date "^2.4.0"
@@ -11842,30 +11842,30 @@ netlify-cms-app@^2.11.25:
     react-immutable-proptypes "^2.1.0"
     uuid "^3.3.2"
 
-netlify-cms-backend-bitbucket@^2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/netlify-cms-backend-bitbucket/-/netlify-cms-backend-bitbucket-2.11.0.tgz#9ff8bec398d7dbb87d2a3a0f35e826ce42f9e9bb"
-  integrity sha512-/Tj+tJl3uziBkSyFi98ZxLj04px/5ZRhQ1AJAXh0W2WWwM7D+1x6LfZ6kCOqx3jsZu0+yF92IPMT69wZkRgGLg==
+netlify-cms-backend-bitbucket@^2.11.1:
+  version "2.11.1"
+  resolved "https://registry.yarnpkg.com/netlify-cms-backend-bitbucket/-/netlify-cms-backend-bitbucket-2.11.1.tgz#06cc950dee5cf56aec197737cae52a23f4d7ca07"
+  integrity sha512-Pvq9akNt7WBNdk64iiSW1z+nsUDlOO6xVsuDe4tmOgApvo7QCY73EGmgc7L7ZZLhKo2IOEvZbYx9cVkQ4HhfxQ==
   dependencies:
     common-tags "^1.8.0"
     js-base64 "^2.5.1"
     semaphore "^1.1.0"
     what-the-diff "^0.6.0"
 
-netlify-cms-backend-git-gateway@^2.9.0:
-  version "2.9.0"
-  resolved "https://registry.yarnpkg.com/netlify-cms-backend-git-gateway/-/netlify-cms-backend-git-gateway-2.9.0.tgz#87fc22839e76ef269fe87cc7ae52118b17d0c828"
-  integrity sha512-qB4zQpnULQgC53KZ04xvzmdKdULlNsVoTA1gq4iZRitePQX9q9wS+qDVel/+qahBU3pOOBhKMGN6QZdyYHnVCw==
+netlify-cms-backend-git-gateway@^2.9.1:
+  version "2.9.1"
+  resolved "https://registry.yarnpkg.com/netlify-cms-backend-git-gateway/-/netlify-cms-backend-git-gateway-2.9.1.tgz#8895886dfa0efe121c83aa15520e76e5abbb6ebc"
+  integrity sha512-NtHefWyzM2VX2m0DLewmK2yAc5CQTyg5dgCZArDqsiLY/cafXW+Eb1D/xRIq6/RuGrANXTJZuOQIMY2NlaMrGQ==
   dependencies:
     gotrue-js "^0.9.24"
     ini "^1.3.5"
     jwt-decode "^2.2.0"
     minimatch "^3.0.4"
 
-netlify-cms-backend-github@^2.9.1:
-  version "2.9.1"
-  resolved "https://registry.yarnpkg.com/netlify-cms-backend-github/-/netlify-cms-backend-github-2.9.1.tgz#42c41e2de34e47a8160dbea74fa376f9d37a5f7b"
-  integrity sha512-SpP0oGQ7/tFNfZrzu4t/igNkv94PebFacgF6qQcH2pfWuqLMYlJGvM5RFR4x+bPLpVtgDtIzPIQLf4k+4OuovQ==
+netlify-cms-backend-github@^2.9.3:
+  version "2.9.3"
+  resolved "https://registry.yarnpkg.com/netlify-cms-backend-github/-/netlify-cms-backend-github-2.9.3.tgz#77fe89d52d645fa7116611f6cdf4fdbb970e408e"
+  integrity sha512-LOWkqCHWNOMcyVzFK9MqEn2Vngdgxb6aYByKA19U90aoEe2UlKy16m6KusUbLGDpT3sarytn3xbVvizVfrKa2g==
   dependencies:
     apollo-cache-inmemory "^1.6.2"
     apollo-client "^2.6.3"
@@ -11877,23 +11877,23 @@ netlify-cms-backend-github@^2.9.1:
     js-base64 "^2.5.1"
     semaphore "^1.1.0"
 
-netlify-cms-backend-gitlab@^2.8.0:
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/netlify-cms-backend-gitlab/-/netlify-cms-backend-gitlab-2.8.0.tgz#35bff0980c4e17d3d2a2c5bb2c9a35ea4229ee4e"
-  integrity sha512-hfoyHibltrHm+TnQgoFLauAYzSw4Jw1bVw89RvngIFCxCCIeHkBODYL3ULTLkYoTDKwkATeVpKo7Jzq+b7Sv/Q==
+netlify-cms-backend-gitlab@^2.8.1:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/netlify-cms-backend-gitlab/-/netlify-cms-backend-gitlab-2.8.1.tgz#f76611c0809745b6b37e5f0d9eea21032dde2a92"
+  integrity sha512-OFtK4nVvRpt+IWR0ImbI+LBEu+vJOLLSjAfonenF4WbvGCysXCyJHC4ztWb4B8mAlX/GlAdQW6WavZVQmZ1B5Q==
   dependencies:
     js-base64 "^2.5.1"
     semaphore "^1.1.0"
 
-netlify-cms-backend-test@^2.7.2:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/netlify-cms-backend-test/-/netlify-cms-backend-test-2.7.2.tgz#b5895b95de5dbe05576e99f72fe5d182a3e46033"
-  integrity sha512-E1QkgyI+PsIGFg7rErVIfSaMUqRyah4rJnfwAm3x0+R3omv2tOk+1SfN7HFqdkrnieen5nfNLseZFvKwg5j4Ng==
+netlify-cms-backend-test@^2.7.3:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/netlify-cms-backend-test/-/netlify-cms-backend-test-2.7.3.tgz#2bbeaefc640a106a5d0fb3587a729fb4c204e606"
+  integrity sha512-10jeYWuepZYbVmU2ImAOmSVfRt59DhmoXYgxU0jQKBUPI74hPF7LCoTOm+1UzunqA+NMpKLkLlVjHMm40bUGKg==
 
-netlify-cms-core@^2.20.0:
-  version "2.20.0"
-  resolved "https://registry.yarnpkg.com/netlify-cms-core/-/netlify-cms-core-2.20.0.tgz#9239f9b442c35b1d7c0276c753a13be1421e647f"
-  integrity sha512-sWHgOh2Yk2VZmc705wGsjNZWDsHPJpduaCcTbzbapcLgCDUsd+suVCI0v5DIpw8y4h3hRee70MyfgJPMHeaBvQ==
+netlify-cms-core@^2.21.0:
+  version "2.21.0"
+  resolved "https://registry.yarnpkg.com/netlify-cms-core/-/netlify-cms-core-2.21.0.tgz#6b081029db57e05539b4c83c8c8560c1aa75b9da"
+  integrity sha512-OX/GsOc9/13lgQ8qq3RMg1eDD04DFi1bjwNxF/QN6psHJmEOpMHjkC2q1Llo3LZFSqvikD/90zlrijjfolTZLw==
   dependencies:
     "@iarna/toml" "2.2.3"
     ajv "^6.10.0"
@@ -11957,15 +11957,15 @@ netlify-cms-lib-util@^2.8.0:
     localforage "^1.7.3"
     semaphore "^1.1.0"
 
-netlify-cms-locales@^1.9.2:
-  version "1.9.2"
-  resolved "https://registry.yarnpkg.com/netlify-cms-locales/-/netlify-cms-locales-1.9.2.tgz#2f036234bcfb9a22a240b38b0267f3b20a7b40b5"
-  integrity sha512-17IprsoXmeMgndKHW4ELA/kGK0G3kBQh7v0orpEwBp9qs6FeqT/XCVwe5a9eqJCQwjccS6v45t4le577vwH1xg==
+netlify-cms-locales@^1.9.3:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/netlify-cms-locales/-/netlify-cms-locales-1.9.3.tgz#23fd1b7b69423d39aa8a50cae3a656aadcec1795"
+  integrity sha512-rO/3bvtN2NOpF/Jz5eFxertkoGu+7KE7ec0BWhdnWG4gNjc3so8AhW6dPyDr+FX9vBexp4ZADDKxYEYM+7fO0Q==
 
-netlify-cms-ui-default@^2.9.1:
-  version "2.9.1"
-  resolved "https://registry.yarnpkg.com/netlify-cms-ui-default/-/netlify-cms-ui-default-2.9.1.tgz#aa4f79edadf8cc0f683a10bb0e88d71f0fc7aafe"
-  integrity sha512-o0u0Ln5BlUI/shoCpdQMVVJJsg0PXSVThyyiOeIBknl3k1Rb2yo31RRDKZToNqqpMHCheVI0+WLIsde3Tuthaw==
+netlify-cms-ui-default@^2.9.2:
+  version "2.9.2"
+  resolved "https://registry.yarnpkg.com/netlify-cms-ui-default/-/netlify-cms-ui-default-2.9.2.tgz#6d8bd755f9dc89bff4bef3761e78f0041ec8c347"
+  integrity sha512-lqJv+OID4GEhZI+/mMmWQO6gdUM/gOsX1YT4NGAeEviZz/2vs6uk93oJfWz5Bk3qyYPSJDsCi3qihuEjVpPvvg==
   dependencies:
     react-aria-menubutton "^6.0.0"
     react-toggled "^1.1.2"