diff --git a/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgReceiverBean.java b/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgReceiverBean.java
index 9006607..1d9d922 100644
--- a/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgReceiverBean.java
+++ b/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgReceiverBean.java
@@ -149,8 +149,8 @@ public class SmgReceiverBean extends FileJobBean {
 
 		new WebClient().post(req ->
 			req.uri(alert)
-			   .data("interfaceSequences", interfaceSequences)
-			   .json(true)
+			   .contentType(WebClient.Request.ContentType.JSON)
+			   .bodyData(interfaceSequences)
 			   .async(true)
 		);
 	}
diff --git a/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgSenderBean.java b/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgSenderBean.java
index 610e9b3..0db042a 100644
--- a/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgSenderBean.java
+++ b/src/main/java/cokr/xit/interfaces/smg/service/bean/SmgSenderBean.java
@@ -161,10 +161,10 @@ public class SmgSenderBean extends FileJobBean {
 
 		new WebClient().post(req ->
 			req.uri(alert)
-				.data("success", success)
-				.data("fail", fail)
-				.json(true)
-				.async(true)
+			   .contentType(WebClient.Request.ContentType.JSON)
+			   .data("success", success)
+			   .data("fail", fail)
+			   .async(true)
 		);
 	}
 }
\ No newline at end of file
diff --git a/src/main/java/cokr/xit/interfaces/smg/web/SmgController.java b/src/main/java/cokr/xit/interfaces/smg/web/SmgController.java
index 702b92f..b3477e3 100644
--- a/src/main/java/cokr/xit/interfaces/smg/web/SmgController.java
+++ b/src/main/java/cokr/xit/interfaces/smg/web/SmgController.java
@@ -32,8 +32,7 @@ public class SmgController extends AbstractController {
 	 * </ul>
 	 */
 	@PostMapping(value = "/petition/receive.do", name = "국민 신문고 민원 수신")
-	public ModelAndView receivePetitions(@RequestBody Map<String, Object> result) {
-		List<String> interfaceSequences = (List<String>)result.get("interfaceSequences");
+	public ModelAndView receivePetitions(@RequestBody List<String> interfaceSequences) {
 		boolean empty = isEmpty(interfaceSequences);
 		log().debug("interfaceSequences received: {}", empty ? "none" : String.join(", ", interfaceSequences));