diff --git a/Cy.WeChat.Browser/wwwroot/lib/signalr/package-lock.json b/Cy.WeChat.Browser/wwwroot/lib/signalr/package-lock.json
index bfa6a8b..a5926fd 100644
--- a/Cy.WeChat.Browser/wwwroot/lib/signalr/package-lock.json
+++ b/Cy.WeChat.Browser/wwwroot/lib/signalr/package-lock.json
@@ -60,9 +60,9 @@
       "dev": true
     },
     "ajv": {
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-      "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==",
       "requires": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",