diff --git a/package.json b/package.json
index e9a246b3..54d40208 100644
--- a/package.json
+++ b/package.json
@@ -103,7 +103,7 @@
     "ora": "0.4.1",
     "postcss-loader": "3.0.0",
     "raw-loader": "0.5.1",
-    "sass": "1.20.1",
+    "sass": "1.51.0",
     "sass-loader": "7.2.0",
     "selenium-server": "2.53.1",
     "semver": "5.6.0",
diff --git a/yarn.lock b/yarn.lock
index 042d87ac..23318614 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2732,23 +2732,20 @@ chardet@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
 
-chokidar@^2.0.0:
-  version "2.1.6"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.1.6.tgz#b6cad653a929e244ce8a834244164d241fa954c5"
+"chokidar@>=3.0.0 <4.0.0", chokidar@^3.5.1:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.3.tgz#1cf37c8707b932bd1af1ae22c0432e2acd1903bd"
+  integrity sha512-Dr3sfKRP6oTcjf2JmUmFJfeVMvXBdegxB0iVQ5eb2V10uFJUCAS8OByZdVAyVb8xXNz3GjjTgj9kLWsZTqE6kw==
   dependencies:
-    anymatch "^2.0.0"
-    async-each "^1.0.1"
-    braces "^2.3.2"
-    glob-parent "^3.1.0"
-    inherits "^2.0.3"
-    is-binary-path "^1.0.0"
-    is-glob "^4.0.0"
-    normalize-path "^3.0.0"
-    path-is-absolute "^1.0.0"
-    readdirp "^2.2.1"
-    upath "^1.1.1"
+    anymatch "~3.1.2"
+    braces "~3.0.2"
+    glob-parent "~5.1.2"
+    is-binary-path "~2.1.0"
+    is-glob "~4.0.1"
+    normalize-path "~3.0.0"
+    readdirp "~3.6.0"
   optionalDependencies:
-    fsevents "^1.2.7"
+    fsevents "~2.3.2"
 
 chokidar@^2.1.8:
   version "2.1.8"
@@ -2784,21 +2781,6 @@ chokidar@^3.4.1:
   optionalDependencies:
     fsevents "~2.3.1"
 
-chokidar@^3.5.1:
-  version "3.5.3"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.3.tgz#1cf37c8707b932bd1af1ae22c0432e2acd1903bd"
-  integrity sha512-Dr3sfKRP6oTcjf2JmUmFJfeVMvXBdegxB0iVQ5eb2V10uFJUCAS8OByZdVAyVb8xXNz3GjjTgj9kLWsZTqE6kw==
-  dependencies:
-    anymatch "~3.1.2"
-    braces "~3.0.2"
-    glob-parent "~5.1.2"
-    is-binary-path "~2.1.0"
-    is-glob "~4.0.1"
-    normalize-path "~3.0.0"
-    readdirp "~3.6.0"
-  optionalDependencies:
-    fsevents "~2.3.2"
-
 chownr@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
@@ -5139,6 +5121,11 @@ immediate@~3.0.5:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
 
+immutable@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0.tgz#b86f78de6adef3608395efb269a91462797e2c23"
+  integrity sha512-zIE9hX70qew5qTUjSS7wi1iwj/l7+m54KWU247nhM3v806UdGj1yDndXj+IOYxxtW9zyLI+xqFNZjTuDaLUqFw==
+
 import-cwd@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/import-cwd/-/import-cwd-2.1.0.tgz#aa6cf36e722761285cb371ec6519f53e2435b0a9"
@@ -8630,12 +8617,14 @@ sass-loader@7.2.0:
     pify "^4.0.1"
     semver "^5.5.0"
 
-sass@1.20.1:
-  version "1.20.1"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.20.1.tgz#737b901fe072336da540b6d00ec155e2267420da"
-  integrity sha512-BnCawee/L5kVG3B/5Jg6BFwASqUwFVE6fj2lnkVuSXDgQ7gMAhY9a2yPeqsKhJMCN+Wgx0r2mAW7XF/aTF5qtA==
+sass@1.51.0:
+  version "1.51.0"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.51.0.tgz#25ea36cf819581fe1fe8329e8c3a4eaaf70d2845"
+  integrity sha512-haGdpTgywJTvHC2b91GSq+clTKGbtkkZmVAb82jZQN/wTy6qs8DdFm2lhEQbEwrY0QDRgSQ3xDurqM977C3noA==
   dependencies:
-    chokidar "^2.0.0"
+    chokidar ">=3.0.0 <4.0.0"
+    immutable "^4.0.0"
+    source-map-js ">=0.6.2 <2.0.0"
 
 sax@^1.2.4, sax@~1.2.1:
   version "1.2.4"
@@ -8947,7 +8936,7 @@ source-list-map@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
 
-source-map-js@^1.0.2:
+"source-map-js@>=0.6.2 <2.0.0", source-map-js@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
   integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==