diff --git a/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java b/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
index d0e92da..9d8a195 100644
--- a/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
+++ b/src/main/java/com/eactive/eai/adapter/http/client/impl/HttpClient5AdapterServiceRest.java
@@ -725,7 +725,7 @@ public class HttpClient5AdapterServiceRest extends HttpClient5AdapterServiceSupp
 	 */
 	private void setNiceOnAuthHeaders(HttpUriRequestBase method, String auth) throws Exception {
 		method.setHeader("Authorization",
-				String.format("%s %s", AccessTokenVO.BEARER_TYPE, auth));  // 나이스지키미 format임
+				String.format("%s %s", "bearer", auth));  // 나이스지키미 format임, bearer을 소문자로 보내야함
 		String productId = PropManager.getInstance().getProperty("NiceOnProperty","productId.value");
 		method.setHeader("ProductID", productId);
 		//method.setHeader("Authorization",