diff --git a/package-lock.json b/package-lock.json
index 45fed98..e443ee7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "lhisp-oauth-client",
-  "version": "1.0.24",
+  "version": "1.0.25",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "lhisp-oauth-client",
-      "version": "1.0.24",
+      "version": "1.0.25",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.6.1",
diff --git a/package.json b/package.json
index 4f9850c..1156f5c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lhisp-oauth-client",
-  "version": "1.0.24",
+  "version": "1.0.25",
   "main": "src/index",
   "types": "src/index.d.ts",
   "repository": "git@bitbucket.org:leandro_costa/lhisp-oauth-client.git",
diff --git a/src/lhisp-oauth-client.t.ts b/src/lhisp-oauth-client.t.ts
index 3ad36cc..a4bf572 100644
--- a/src/lhisp-oauth-client.t.ts
+++ b/src/lhisp-oauth-client.t.ts
@@ -15,6 +15,7 @@ export interface LhispOauthClientConstructorParams {
   authHeaderName?: string;
   tokenHeaderName?: string;
   headers?: Headers;
+  authHeaders?: Headers;
   grantType?: string;
   authContentType?: ContentType;
   sendAuthCredentialsOnRequestBody?: boolean;
diff --git a/src/lhisp-oauth-client.ts b/src/lhisp-oauth-client.ts
index dfc7649..c26024a 100644
--- a/src/lhisp-oauth-client.ts
+++ b/src/lhisp-oauth-client.ts
@@ -25,6 +25,7 @@ export class LhispOauthClient<iAccessToken extends AccessToken = AccessToken> {
   protected senhaCertificado?: string;
   protected authScope?: string;
   protected headers?: AxiosHeaders;
+  protected authHeaders?: AxiosHeaders;
   protected grantType?: string;
   protected agent: https.Agent;
   protected accessToken?: iAccessToken;
@@ -49,6 +50,7 @@ export class LhispOauthClient<iAccessToken extends AccessToken = AccessToken> {
 
     this.certificado = params.certificado;
     this.headers = (params.headers ? params.headers : {}) as any as AxiosHeaders;
+    this.authHeaders = (params.authHeaders ? params.authHeaders : {}) as any as AxiosHeaders;
     this.apiUrl = params.apiUrl;
     this.authUrl = params.authUrl;
     this.authScope = params.authScope;
@@ -101,6 +103,7 @@ export class LhispOauthClient<iAccessToken extends AccessToken = AccessToken> {
         headers: {
           [this.authHeaderName]: this.getAuthHeaderValue(),
           "Content-Type": this.authContentType,
+          ...this.authHeaders,
         },
         data: {},
       };