diff --git a/package-lock.json b/package-lock.json
index f45ce29..7d10434 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,6 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
       "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
-      "optional": true,
       "requires": {
         "es6-promisify": "^5.0.0"
       }
@@ -181,7 +180,6 @@
       "version": "3.2.6",
       "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
       "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
-      "optional": true,
       "requires": {
         "ms": "^2.1.1"
       }
@@ -327,10 +325,9 @@
       }
     },
     "https-proxy-agent": {
-      "version": "2.2.2",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.2.tgz",
-      "integrity": "sha512-c8Ndjc9Bkpfx/vCJueCPy0jlP4ccCCSNDp8xwCZzPjKJUm+B+u9WX2x98Qx4n1PiMNTWo3D7KK5ifNV/yJyRzg==",
-      "optional": true,
+      "version": "2.2.4",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
+      "integrity": "sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==",
       "requires": {
         "agent-base": "^4.3.0",
         "debug": "^3.1.0"