diff --git a/Domain-Module/src/test/kotlin/com/bamyanggang/domainmodule/domain/user/service/TokenAppenderTest.kt b/Domain-Module/src/test/kotlin/com/bamyanggang/domainmodule/domain/user/service/TokenAppenderTest.kt
index 9a642f09..d45e326f 100644
--- a/Domain-Module/src/test/kotlin/com/bamyanggang/domainmodule/domain/user/service/TokenAppenderTest.kt
+++ b/Domain-Module/src/test/kotlin/com/bamyanggang/domainmodule/domain/user/service/TokenAppenderTest.kt
@@ -30,6 +30,7 @@ class TokenAppenderTest : BehaviorSpec({
     Given("a user id and a refresh token, and the user has an existing token") {
         val mockToken = mockk<Token>(relaxed = true)
         every { mockTokenRepository.findByUserId(userId) } returns mockToken
+        every { mockToken.update(userId, refreshToken) } returns mockToken
 
         When("appendToken is called") {
             tokenAppender.appendToken(userId, refreshToken)