diff --git a/package-lock.json b/package-lock.json
index 7889d15e..15e0eecd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "xero-node",
-  "version": "5.1.0",
+  "version": "6.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "xero-node",
-      "version": "5.1.0",
+      "version": "6.0.0",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.6.5",
@@ -1386,9 +1386,9 @@
       }
     },
     "node_modules/@types/http-cache-semantics": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.1.tgz",
-      "integrity": "sha512-SZs7ekbP8CN0txVG2xVRH6EgKmEm31BOxA07vkFaETzZz1xh+cbt8BcI0slpymvwhx5dlFnQG2rTlPVQn+iRPQ=="
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.4.tgz",
+      "integrity": "sha512-1m0bIFVc7eJWyve9S0RnuRgcQqF/Xd5QsUZAZeQFr1Q3/p9JWoQQEqmVy+DPTNpGXwhgIetAoYF8JSc33q29QA=="
     },
     "node_modules/@types/istanbul-lib-coverage": {
       "version": "2.0.6",
@@ -1438,9 +1438,9 @@
       "integrity": "sha512-J8xLz7q2OFulZ2cyGTLE1TbbZcjpno7FaN6zdJNrgAdrJ+DZzh/uFR6YrTb4C+nXakvud8Q4+rbhoIWlYQbUFQ=="
     },
     "node_modules/@types/responselike": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@types/responselike/-/responselike-1.0.0.tgz",
-      "integrity": "sha512-85Y2BjiufFzaMIlvJDvTTB8Fxl2xfLo4HgmHzVBz08w4wDePCTjYw66PdrolO0kzli3yam/YCgRufyo1DdQVTA==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@types/responselike/-/responselike-1.0.3.tgz",
+      "integrity": "sha512-H/+L+UkTV33uf49PH5pCAUBVPNj2nDBXTN+qS1dOwyyg24l3CcicicCA7ca+HMvJBZcFgl5r8e+RR6elsb4Lyw==",
       "dependencies": {
         "@types/node": "*"
       }
@@ -1834,9 +1834,9 @@
       }
     },
     "node_modules/cacheable-request": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-7.0.2.tgz",
-      "integrity": "sha512-pouW8/FmiPQbuGpkXQ9BAPv/Mo5xDGANgSNXzTzJ8DrKGuXOssM4wIQRjfanNRh3Yu5cfYPvcorqbhg2KIJtew==",
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-7.0.4.tgz",
+      "integrity": "sha512-v+p6ongsrp0yTGbJXjgxPow2+DL93DASP4kXCDKb8/bwRtt9OEF3whggkkDkGNzgcWy2XaF4a8nZglC7uElscg==",
       "dependencies": {
         "clone-response": "^1.0.2",
         "get-stream": "^5.1.0",
@@ -4474,9 +4474,9 @@
       }
     },
     "node_modules/jose": {
-      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/jose/-/jose-2.0.6.tgz",
-      "integrity": "sha512-FVoPY7SflDodE4lknJmbAHSUjLCzE2H1F6MS0RYKMQ8SR+lNccpMf8R4eqkNYyyUjR5qZReOzZo5C5YiHOCjjg==",
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/jose/-/jose-2.0.7.tgz",
+      "integrity": "sha512-5hFWIigKqC+e/lRyQhfnirrAqUdIPMB7SJRqflJaO29dW7q5DFvH1XCSTmv6PQ6pb++0k6MJlLRoS0Wv4s38Wg==",
       "dependencies": {
         "@panva/asn1.js": "^1.0.0"
       },
@@ -4554,9 +4554,9 @@
       "dev": true
     },
     "node_modules/keyv": {
-      "version": "4.5.2",
-      "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.2.tgz",
-      "integrity": "sha512-5MHbFaKn8cNSmVW7BYnijeAVlE4cYA/SVkifVgrh7yotnfhKmjuXpDKjrABLnT0SfHWV21P8ow07OGfRrNDg8g==",
+      "version": "4.5.4",
+      "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
+      "integrity": "sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==",
       "dependencies": {
         "json-buffer": "3.0.1"
       }
@@ -6967,9 +6967,9 @@
       }
     },
     "@types/http-cache-semantics": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.1.tgz",
-      "integrity": "sha512-SZs7ekbP8CN0txVG2xVRH6EgKmEm31BOxA07vkFaETzZz1xh+cbt8BcI0slpymvwhx5dlFnQG2rTlPVQn+iRPQ=="
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.4.tgz",
+      "integrity": "sha512-1m0bIFVc7eJWyve9S0RnuRgcQqF/Xd5QsUZAZeQFr1Q3/p9JWoQQEqmVy+DPTNpGXwhgIetAoYF8JSc33q29QA=="
     },
     "@types/istanbul-lib-coverage": {
       "version": "2.0.6",
@@ -7019,9 +7019,9 @@
       "integrity": "sha512-J8xLz7q2OFulZ2cyGTLE1TbbZcjpno7FaN6zdJNrgAdrJ+DZzh/uFR6YrTb4C+nXakvud8Q4+rbhoIWlYQbUFQ=="
     },
     "@types/responselike": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@types/responselike/-/responselike-1.0.0.tgz",
-      "integrity": "sha512-85Y2BjiufFzaMIlvJDvTTB8Fxl2xfLo4HgmHzVBz08w4wDePCTjYw66PdrolO0kzli3yam/YCgRufyo1DdQVTA==",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@types/responselike/-/responselike-1.0.3.tgz",
+      "integrity": "sha512-H/+L+UkTV33uf49PH5pCAUBVPNj2nDBXTN+qS1dOwyyg24l3CcicicCA7ca+HMvJBZcFgl5r8e+RR6elsb4Lyw==",
       "requires": {
         "@types/node": "*"
       }
@@ -7329,9 +7329,9 @@
       "integrity": "sha512-2/kNscPhpcxrOigMZzbiWF7dz8ilhb/nIHU3EyZiXWXpeq/au8qJ8VhdftMkty3n7Gj6HIGalQG8oiBNB3AJgA=="
     },
     "cacheable-request": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-7.0.2.tgz",
-      "integrity": "sha512-pouW8/FmiPQbuGpkXQ9BAPv/Mo5xDGANgSNXzTzJ8DrKGuXOssM4wIQRjfanNRh3Yu5cfYPvcorqbhg2KIJtew==",
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-7.0.4.tgz",
+      "integrity": "sha512-v+p6ongsrp0yTGbJXjgxPow2+DL93DASP4kXCDKb8/bwRtt9OEF3whggkkDkGNzgcWy2XaF4a8nZglC7uElscg==",
       "requires": {
         "clone-response": "^1.0.2",
         "get-stream": "^5.1.0",
@@ -9256,9 +9256,9 @@
       }
     },
     "jose": {
-      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/jose/-/jose-2.0.6.tgz",
-      "integrity": "sha512-FVoPY7SflDodE4lknJmbAHSUjLCzE2H1F6MS0RYKMQ8SR+lNccpMf8R4eqkNYyyUjR5qZReOzZo5C5YiHOCjjg==",
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/jose/-/jose-2.0.7.tgz",
+      "integrity": "sha512-5hFWIigKqC+e/lRyQhfnirrAqUdIPMB7SJRqflJaO29dW7q5DFvH1XCSTmv6PQ6pb++0k6MJlLRoS0Wv4s38Wg==",
       "requires": {
         "@panva/asn1.js": "^1.0.0"
       }
@@ -9315,9 +9315,9 @@
       "dev": true
     },
     "keyv": {
-      "version": "4.5.2",
-      "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.2.tgz",
-      "integrity": "sha512-5MHbFaKn8cNSmVW7BYnijeAVlE4cYA/SVkifVgrh7yotnfhKmjuXpDKjrABLnT0SfHWV21P8ow07OGfRrNDg8g==",
+      "version": "4.5.4",
+      "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
+      "integrity": "sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==",
       "requires": {
         "json-buffer": "3.0.1"
       }
diff --git a/src/model/ApiError.ts b/src/model/ApiError.ts
index e14bda53..47e541bd 100644
--- a/src/model/ApiError.ts
+++ b/src/model/ApiError.ts
@@ -38,7 +38,7 @@ export class ApiError {
 		this.request = {
 			url: {
 				protocol: axiosError.request.protocol,
-				port: axiosError.request.agent.defaultPort,
+				port: axiosError.request.agent?.defaultPort || axiosError.request.socket?.localPort,
 				host: axiosError.request.host,
 				path: axiosError.request.path,
 			},