diff --git a/package-lock.json b/package-lock.json
index d648e55e9..6d8ef258b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -58,8 +58,8 @@
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
       "requires": {
-        "co": "4.6.0",
-        "json-stable-stringify": "1.0.1"
+        "co": "^4.6.0",
+        "json-stable-stringify": "^1.0.1"
       }
     },
     "amdefine": {
@@ -7694,10 +7694,10 @@
           "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
           "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
           "requires": {
-            "co": "4.6.0",
-            "fast-deep-equal": "1.1.0",
-            "fast-json-stable-stringify": "2.0.0",
-            "json-schema-traverse": "0.3.1"
+            "co": "^4.6.0",
+            "fast-deep-equal": "^1.0.0",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.3.0"
           }
         },
         "assert-plus": {