diff --git a/package-lock.json b/package-lock.json
index 3b21812..fcd85da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -507,7 +507,7 @@
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
-      "integrity": "sha1-vNZ5HqWuCXJeF+WtmIE0zUCz2RE=",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
@@ -3766,7 +3766,7 @@
     "esprima": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
-      "integrity": "sha1-E7BM2z5sXRnfkatph6hpVhmwqnE=",
+      "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
       "dev": true
     },
     "esrecurse": {
@@ -7020,9 +7020,9 @@
       "dev": true
     },
     "js-yaml": {
-      "version": "3.12.2",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.2.tgz",
-      "integrity": "sha1-7x0GfFqdnLZb1y8oW12BBcd/FPw=",
+      "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/package.json b/package.json
index a103bfc..32e8f3b 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "gulp-sourcemaps": "^2.6.4",
     "gulp-uglify": "^3.0.1",
     "gulp-zip": "^4.0.0",
-    "js-yaml": "^3.4.6",
+    "js-yaml": "^3.13.1",
     "panini": "^1.3.0",
     "rimraf": "^2.4.3",
     "style-sherpa": "^1.0.0",