diff --git a/ApiTestManager/src/APITester.js b/ApiTestManager/src/APITester.js
index 2378cdc..188d6e6 100644
--- a/ApiTestManager/src/APITester.js
+++ b/ApiTestManager/src/APITester.js
@@ -763,11 +763,27 @@ class APITester {
     let model = this.apiRequests[index];
     me.showLoadingOverlay();
 
+
     this.currentAjaxRequest = $.ajax({
       url: this.getAPISaveURL(model.collectionId), type: 'POST', contentType: 'application/json', data: JSON.stringify(model), success: function(data) {
         let message = '저장되었습니다.';
         $('.toast-body').text(message);
         $('.toast').toast('show');
+        let collection = me.collections.find(function(collection) {
+          return collection.id === model.collectionId;
+        });
+
+        if (collection) {
+          // Assuming each API in the collection.apis array has an 'id' you want to match with model.id
+          let apiIndex = collection.apis.findIndex(api => api.id === model.id);
+          if (apiIndex !== -1) {
+            collection.apis[apiIndex] = model; // Replace the API with the model
+          } else {
+            console.log("API not found in the collection.");
+          }
+        } else {
+          console.log("Collection not found.");
+        }
       }, error: function(response, textStatus, errorThrown) {
         me.hideLoadingOverlay();
         $('.toast-body').text(response.responseJSON.error);