diff --git a/package-lock.json b/package-lock.json
index 8833acb..eee144d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -71,7 +71,7 @@
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "array-union": {
@@ -578,6 +578,16 @@
         "text-table": "0.2.0"
       },
       "dependencies": {
+        "js-yaml": {
+          "version": "3.12.0",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.0.tgz",
+          "integrity": "sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
         "lodash": {
           "version": "4.17.11",
           "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
@@ -1202,12 +1212,12 @@
       "dev": true
     },
     "js-yaml": {
-      "version": "3.12.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.0.tgz",
-      "integrity": "sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==",
+      "version": "3.13.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+      "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
       "requires": {
-        "argparse": "1.0.10",
-        "esprima": "4.0.1"
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
       }
     },
     "json-schema-traverse": {