diff --git a/package-lock.json b/package-lock.json
index 87e5665..71c14e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2619,29 +2619,15 @@
       }
     },
     "ajv": {
-      "version": "5.2.5",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.2.5.tgz",
-      "integrity": "sha1-tjcjTT4mdetfefxlIkKoU6SMtJ8=",
+      "version": "6.12.3",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.3.tgz",
+      "integrity": "sha512-4K0cK3L1hsqk9xIb2z9vs/XU+PGJZ9PNpJRDS9YLzmNdX6jmVPfamLvTJr0aDAusnHyCHO6MjzlkAsgtqp9teA==",
       "dev": true,
       "requires": {
-        "co": "^4.6.0",
-        "fast-deep-equal": "^1.0.0",
-        "json-schema-traverse": "^0.3.0",
-        "json-stable-stringify": "^1.0.1"
-      },
-      "dependencies": {
-        "fast-deep-equal": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
-          "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
-          "dev": true
-        },
-        "json-schema-traverse": {
-          "version": "0.3.1",
-          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz",
-          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
-          "dev": true
-        }
+        "fast-deep-equal": "^3.1.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
       }
     },
     "ajv-errors": {
@@ -11683,6 +11669,12 @@
             "which": "^1.2.9"
           }
         },
+        "fast-deep-equal": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
+          "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
+          "dev": true
+        },
         "gaze": {
           "version": "1.1.3",
           "resolved": "https://registry.npmjs.org/gaze/-/gaze-1.1.3.tgz",
@@ -11711,8 +11703,28 @@
           "requires": {
             "ajv": "^5.1.0",
             "har-schema": "^2.0.0"
+          },
+          "dependencies": {
+            "ajv": {
+              "version": "5.5.2",
+              "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+              "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+              "dev": true,
+              "requires": {
+                "co": "^4.6.0",
+                "fast-deep-equal": "^1.0.0",
+                "fast-json-stable-stringify": "^2.0.0",
+                "json-schema-traverse": "^0.3.0"
+              }
+            }
           }
         },
+        "json-schema-traverse": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz",
+          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
+          "dev": true
+        },
         "lru-cache": {
           "version": "4.1.5",
           "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
diff --git a/package.json b/package.json
index 9a26cfd..aad00c4 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,6 @@
     "gulp": "~3.9.1",
     "@types/chai": "3.4.34",
     "@types/mocha": "2.2.38",
-    "ajv": "~5.2.2"
+    "ajv": "~6.12.3"
   }
 }