Update package-lock

package-lock.json

@@ -28,7 +28,7 @@
       "integrity": "sha512-7kUx8dtd5qVNVgUARBRhnM8oftPglYwlINfigC4yGUiuzqtIN22u1tly8umiOCIPR0eFiBLjt6aN23oZh2QJgg==",
       "dev": true,
       "requires": {
-        "typescript": "2.9.2"
+        "typescript": "^2.7.2"
       },
       "dependencies": {
         "typescript": {
@@ -63,8 +63,8 @@
       "integrity": "sha512-J0M2i1mQA+ze3EdN9SBi751DNdAXmeFLfJrd/MDIkRc3G3Gbb9OPVSx7GIQvVwfWxQARcYV2DTxIkMyDAk3o9Q==",
       "dev": true,
       "requires": {
-        "commander": "2.16.0",
-        "source-map": "0.6.1"
+        "commander": "~2.16.0",
+        "source-map": "~0.6.1"
       }
     }
   }