diff --git a/package.json b/package.json
index d6c348a2..325eb75e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "eslint-plugin-prettier": "^3.1.2",
     "jest": "^25.1.0",
     "jest-circus": "^25.1.0",
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.1.1",
     "prettier": "^1.19.1",
     "rimraf": "^3.0.0",
     "ts-jest": "^25.1.0",
diff --git a/yarn.lock b/yarn.lock
index c7a50aea..62337364 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -786,6 +786,11 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
+  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
+
 aria-query@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/aria-query/-/aria-query-3.0.0.tgz#65b3fcc1ca1155a8c9ae64d6eee297f15d5133cc"
@@ -2945,6 +2950,13 @@ js-yaml@^3.10.0, js-yaml@^3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+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"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"