diff --git a/src/lhisp-oauth-client.ts b/src/lhisp-oauth-client.ts
index a9f3e64..d6c4ad6 100644
--- a/src/lhisp-oauth-client.ts
+++ b/src/lhisp-oauth-client.ts
@@ -176,14 +176,14 @@ export class LhispOauthClient<iAccessToken extends AccessToken = AccessToken> {
       };
 
       const response = await axios.request<ResponseType>({
+        ...opt,
         method,
         url: `${this.apiUrl}${path}`,
         httpsAgent: this.agent,
-        headers,
+        headers: { ...headers, ...opt.headers },
         data,
         params,
         timeout: this.timeout,
-        ...opt,
       });
 
       return response.data;