diff --git a/package-lock.json b/package-lock.json
index e7ef92c..10dbd32 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1444,16 +1444,6 @@
       "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=",
       "dev": true
     },
-    "agent-base": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
-      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "es6-promisify": "^5.0.0"
-      }
-    },
     "ajv": {
       "version": "5.5.2",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
@@ -4899,14 +4889,26 @@
       }
     },
     "https-proxy-agent": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz",
-      "integrity": "sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==",
+      "version": "2.2.4",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
+      "integrity": "sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==",
       "dev": true,
       "optional": true,
       "requires": {
-        "agent-base": "^4.1.0",
+        "agent-base": "^4.3.0",
         "debug": "^3.1.0"
+      },
+      "dependencies": {
+        "agent-base": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+          "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+          "dev": true,
+          "optional": true,
+          "requires": {
+            "es6-promisify": "^5.0.0"
+          }
+        }
       }
     },
     "iconv-lite": {