diff --git a/index.d.cts b/index.d.cts
index b3839a8e..5afd23e9 100644
--- a/index.d.cts
+++ b/index.d.cts
@@ -162,6 +162,7 @@ declare class AxiosError<T = unknown, D = any> extends Error {
   static readonly ERR_CANCELED = 'ERR_CANCELED';
   static readonly ERR_FORM_DATA_DEPTH_EXCEEDED = 'ERR_FORM_DATA_DEPTH_EXCEEDED';
   static readonly ECONNABORTED = 'ECONNABORTED';
+  static readonly ECONNREFUSED = 'ECONNREFUSED';
   static readonly ETIMEDOUT = 'ETIMEDOUT';
 }
 
diff --git a/index.d.ts b/index.d.ts
index 4fb2f8ee..4bcfe9e4 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -519,6 +519,7 @@ export class AxiosError<T = unknown, D = any> extends Error {
   static readonly ERR_CANCELED = 'ERR_CANCELED';
   static readonly ERR_FORM_DATA_DEPTH_EXCEEDED = 'ERR_FORM_DATA_DEPTH_EXCEEDED';
   static readonly ECONNABORTED = 'ECONNABORTED';
+  static readonly ECONNREFUSED = 'ECONNREFUSED';
   static readonly ETIMEDOUT = 'ETIMEDOUT';
 }
 
diff --git a/lib/core/AxiosError.js b/lib/core/AxiosError.js
index 581004d2..882bcfb5 100644
--- a/lib/core/AxiosError.js
+++ b/lib/core/AxiosError.js
@@ -78,6 +78,7 @@ AxiosError.ERR_BAD_OPTION_VALUE = 'ERR_BAD_OPTION_VALUE';
 AxiosError.ERR_BAD_OPTION = 'ERR_BAD_OPTION';
 AxiosError.ECONNABORTED = 'ECONNABORTED';
 AxiosError.ETIMEDOUT = 'ETIMEDOUT';
+AxiosError.ECONNREFUSED = 'ECONNREFUSED';
 AxiosError.ERR_NETWORK = 'ERR_NETWORK';
 AxiosError.ERR_FR_TOO_MANY_REDIRECTS = 'ERR_FR_TOO_MANY_REDIRECTS';
 AxiosError.ERR_DEPRECATED = 'ERR_DEPRECATED';