diff --git a/src/interceptors/interceptor.js b/src/interceptors/interceptor.js
index c18d4a3..a16b8ab 100644
--- a/src/interceptors/interceptor.js
+++ b/src/interceptors/interceptor.js
@@ -12,7 +12,7 @@ const interceptor = (instance) => {
     (config) => {
       const token = tokenService.getAccessToken()
       if (token) {
-        config.headers['Authorization'] = 'Bearer ' + token // for Spring Boot back-end
+        config.headers{ Authorization: `Bearer ${token}` } // for Spring Boot back-end
         config.headers['x-access-token'] = token // for Node.js Express back-end
       }
       return config