diff --git a/package-lock.json b/package-lock.json
index dad7810..1d7e98b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2186,7 +2186,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2601,7 +2602,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2657,6 +2659,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2700,12 +2703,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -3558,9 +3563,9 @@
       "integrity": "sha512-Wpks3yBDm0UcL5qlVhwW9Jr9n9i4FfeWBFOOXP5puDS/SiudJGhw7DPyBqn3487qD4F0lsC0q3zxink37f7zeA=="
     },
     "js-yaml": {
-      "version": "3.12.1",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.1.tgz",
-      "integrity": "sha512-um46hB9wNOKlwkHgiuyEVAybXBjwFUV0Z/RaHJblRd9DXltue9FTYvzCr9ErQrK9Adz5MU4gHWVaNUfdmrC8qA==",
+      "version": "3.13.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+      "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
       "dev": true,
       "requires": {
         "argparse": "^1.0.7",
diff --git a/yarn.lock b/yarn.lock
index 1a869da..db70560 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1936,8 +1936,8 @@ js-sha3@^0.7.0:
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.7.0.tgz#0a5c57b36f79882573b2d84051f8bb85dd1bd63a"
 
 js-yaml@^3.10.0, js-yaml@^3.9.1:
-  version "3.12.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.1.tgz#295c8632a18a23e054cf5c9d3cecafe678167600"
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"