diff --git a/src/test/java/com/yello/server/domain/authorization/medium/AuthControllerTest.java b/src/test/java/com/yello/server/domain/authorization/medium/AuthControllerTest.java
index 34bf804d..a223d472 100644
--- a/src/test/java/com/yello/server/domain/authorization/medium/AuthControllerTest.java
+++ b/src/test/java/com/yello/server/domain/authorization/medium/AuthControllerTest.java
@@ -32,6 +32,7 @@
 import com.yello.server.domain.user.entity.Social;
 import com.yello.server.domain.user.entity.User;
 import com.yello.server.global.exception.ControllerExceptionAdvice;
+import com.yello.server.infrastructure.slack.service.SlackService;
 import com.yello.server.util.TestDataEntityUtil;
 import com.yello.server.util.TestDataUtil;
 import com.yello.server.util.WithAccessTokenUser;
@@ -96,6 +97,9 @@ class AuthControllerTest {
     @MockBean
     private AuthService authService;
 
+    @MockBean
+    private SlackService slackService;
+
     private TestDataUtil testDataUtil = new TestDataEntityUtil();
     private User user;
     private User target;
diff --git a/src/test/java/com/yello/server/domain/purchase/medium/PurchaseControllerTest.java b/src/test/java/com/yello/server/domain/purchase/medium/PurchaseControllerTest.java
index 2d8b7b16..3c6cac67 100644
--- a/src/test/java/com/yello/server/domain/purchase/medium/PurchaseControllerTest.java
+++ b/src/test/java/com/yello/server/domain/purchase/medium/PurchaseControllerTest.java
@@ -28,6 +28,7 @@
 import com.yello.server.domain.purchase.service.PurchaseService;
 import com.yello.server.domain.user.entity.User;
 import com.yello.server.global.exception.ControllerExceptionAdvice;
+import com.yello.server.infrastructure.slack.service.SlackService;
 import com.yello.server.util.TestDataEntityUtil;
 import com.yello.server.util.TestDataUtil;
 import com.yello.server.util.WithAccessTokenUser;
@@ -90,6 +91,9 @@ class PurchaseControllerTest {
 
     @MockBean
     private PurchaseService purchaseService;
+    
+    @MockBean
+    private SlackService slackService;
 
     private TestDataUtil testDataUtil = new TestDataEntityUtil();
     private User user;