diff --git a/.snyk b/.snyk
index 367220a..2b6da19 100644
--- a/.snyk
+++ b/.snyk
@@ -1,5 +1,5 @@
 # Snyk (https://snyk.io) policy file, patches or ignores known vulnerabilities.
-version: v1.13.3
+version: v1.13.5
 ignore: {}
 # patches apply the minimum changes required to fix a vulnerability
 patch:
@@ -9,3 +9,8 @@ patch:
   'npm:uglify-js:20150824':
     - jade > transformers > uglify-js:
         patched: '2019-05-05T11:38:27.698Z'
+  SNYK-JS-HTTPSPROXYAGENT-469131:
+    - snyk > proxy-agent > https-proxy-agent:
+        patched: '2019-10-04T23:33:37.205Z'
+    - snyk > proxy-agent > pac-proxy-agent > https-proxy-agent:
+        patched: '2019-10-04T23:33:37.205Z'
diff --git a/package.json b/package.json
index be1f284..426667c 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "morgan": "~1.9.0",
     "serve-favicon": "~2.4.5",
     "express": "~4.16.0",
-    "snyk": "^1.161.1"
+    "snyk": "^1.231.0"
   },
   "devDependencies": {
     "chai": "*",