diff --git a/.snyk b/.snyk
index 7478646..ece4010 100644
--- a/.snyk
+++ b/.snyk
@@ -1,5 +1,5 @@
 # Snyk (https://snyk.io) policy file, patches or ignores known vulnerabilities.
-version: v1.8.0
+version: v1.13.5
 # ignores vulnerabilities until expiry date; change duration by modifying expiry date
 ignore:
   'npm:mime:20170907':
@@ -9,4 +9,10 @@ ignore:
     - express > serve-static > send > mime:
         reason: None given
         expires: '2018-01-03T22:45:12.780Z'
-patch: {}
+# patches apply the minimum changes required to fix a vulnerability
+patch:
+  SNYK-JS-HTTPSPROXYAGENT-469131:
+    - snyk > proxy-agent > https-proxy-agent:
+        patched: '2019-10-05T02:47:52.382Z'
+    - snyk > proxy-agent > pac-proxy-agent > https-proxy-agent:
+        patched: '2019-10-05T02:47:52.382Z'
diff --git a/package.json b/package.json
index ea12ba0..33fa9f8 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "path": "^0.12.7",
     "socket.io": "",
     "validator": "^9.1.2",
-    "snyk": "^1.53.0"
+    "snyk": "^1.231.0"
   },
   "snyk": true
 }