diff --git a/package-lock.json b/package-lock.json
index e392cb1..7cb8b1b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -969,9 +969,9 @@
       }
     },
     "ajv": {
-      "version": "6.12.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.0.tgz",
-      "integrity": "sha512-D6gFiFA0RRLyUbvijN74DWAjXSFxWKaWP7mldxkVhyhAV3+SWA9HEJPHQ2c9soIeTFJqcSdFDGFgdqs1iUU2Hw==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
@@ -5415,13 +5415,6 @@
       "requires": {
         "debug": "^4.1.1",
         "ws": "^7.2.3"
-      },
-      "dependencies": {
-        "ws": {
-          "version": "7.2.3",
-          "resolved": "https://registry.npmjs.org/ws/-/ws-7.2.3.tgz",
-          "integrity": "sha512-HTDl9G9hbkNDk98naoR/cHDws7+EyYMOdL1BmjsZXRUjf7d+MficC4B7HLUPlSiho0vg+CWKrGIt/VJBd1xunQ=="
-        }
       }
     },
     "koa-router": {