diff --git a/package.json b/package.json
index 5dea65c54f9..6d4f190787b 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "gulp-rtlcss": "^1.4.1",
     "gulp-sass": "^5.1.0",
     "gulp-sourcemaps": "^2.6.1",
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.1.1",
     "lodash": "^4.17.12",
     "merge-stream": "^2.0.0",
     "minimatch": "^3.0.2",
diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index 67917de85d1..b3c04d1238f
--- a/yarn.lock
+++ b/yarn.lock
@@ -7959,10 +7959,10 @@ js-yaml@^3.13.1, js-yaml@^3.14.0, js-yaml@^3.14.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
-js-yaml@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
-  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
+js-yaml@^4.1.0, js-yaml@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.1.tgz#854c292467705b699476e1a2decc0c8a3458806b"
+  integrity sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==
   dependencies:
     argparse "^2.0.1"