diff --git a/package-lock.json b/package-lock.json
index 43db55f..d388259 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -268,7 +268,7 @@
                 },
                 "chalk": {
                     "version": "1.1.3",
-                    "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+                    "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
                     "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
                     "requires": {
                         "ansi-styles": "^2.2.1",
@@ -812,9 +812,9 @@
             "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
         },
         "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": "^1.0.7",
                 "esprima": "^4.0.0"
@@ -975,7 +975,7 @@
             "dependencies": {
                 "semver": {
                     "version": "5.3.0",
-                    "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+                    "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
                     "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8="
                 }
             }
@@ -1386,7 +1386,7 @@
         },
         "strip-ansi": {
             "version": "3.0.1",
-            "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+            "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
             "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
             "requires": {
                 "ansi-regex": "^2.0.0"
@@ -1407,7 +1407,7 @@
         },
         "tar": {
             "version": "2.2.1",
-            "resolved": "http://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
+            "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
             "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
             "requires": {
                 "block-stream": "*",