diff --git a/src/main/java/com/example/daemawiki/domain/auth/api/AuthController.java b/src/main/java/com/example/daemawiki/domain/auth/api/AuthController.java
index b517065a..416dedc9 100644
--- a/src/main/java/com/example/daemawiki/domain/auth/api/AuthController.java
+++ b/src/main/java/com/example/daemawiki/domain/auth/api/AuthController.java
@@ -5,8 +5,8 @@
 import com.example.daemawiki.domain.auth.dto.response.TokenResponse;
 import com.example.daemawiki.domain.auth.dto.request.SignupRequest;
 import com.example.daemawiki.domain.auth.service.Login;
+import com.example.daemawiki.domain.auth.service.Reissue;
 import com.example.daemawiki.domain.auth.service.Signup;
-import com.example.daemawiki.global.security.Tokenizer;
 import jakarta.validation.Valid;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.*;
@@ -17,12 +17,12 @@
 public class AuthController {
     private final Login loginService;
     private final Signup signupService;
-    private final Tokenizer tokenizer;
+    private final Reissue reissue;
 
-    public AuthController(Login loginService, Signup signupService, Tokenizer tokenizer) {
+    public AuthController(Login loginService, Signup signupService, Reissue reissue) {
         this.loginService = loginService;
         this.signupService = signupService;
-        this.tokenizer = tokenizer;
+        this.reissue = reissue;
     }
 
     @PostMapping("/login")
@@ -38,7 +38,7 @@ public Mono<Void> signup(@Valid @RequestBody SignupRequest request) {
 
     @PostMapping("/reissue")
     public Mono<TokenResponse> reissue(@Valid @RequestBody ReissueRequest request) {
-        return tokenizer.reissue(request);
+        return reissue.execute(request);
     }
 
 }
diff --git a/src/main/java/com/example/daemawiki/domain/auth/service/Reissue.java b/src/main/java/com/example/daemawiki/domain/auth/service/Reissue.java
new file mode 100644
index 00000000..d2b9064b
--- /dev/null
+++ b/src/main/java/com/example/daemawiki/domain/auth/service/Reissue.java
@@ -0,0 +1,24 @@
+package com.example.daemawiki.domain.auth.service;
+
+import com.example.daemawiki.domain.auth.dto.request.ReissueRequest;
+import com.example.daemawiki.domain.auth.dto.response.TokenResponse;
+import com.example.daemawiki.global.security.Tokenizer;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+
+@Service
+public class Reissue {
+    private final Tokenizer tokenizer;
+
+    public Reissue(Tokenizer tokenizer) {
+        this.tokenizer = tokenizer;
+    }
+
+    public Mono<TokenResponse> execute(ReissueRequest request) {
+        return tokenizer.reissue(request.token())
+                .map(token -> TokenResponse.builder()
+                        .token(token)
+                        .build());
+    }
+
+}
diff --git a/src/main/java/com/example/daemawiki/global/security/Tokenizer.java b/src/main/java/com/example/daemawiki/global/security/Tokenizer.java
index 6fa86121..370a310b 100644
--- a/src/main/java/com/example/daemawiki/global/security/Tokenizer.java
+++ b/src/main/java/com/example/daemawiki/global/security/Tokenizer.java
@@ -72,22 +72,18 @@ public Authentication getAuthentication(String token) {
                 details, null, details.getAuthorities());
     }
 
-    public Mono<TokenResponse> reissue(ReissueRequest request) {
+    public Mono<String> reissue(String token) {
         try {
-            Claims claims = parseClaims(request.token());
+            Claims claims = parseClaims(token);
             String user = claims.getSubject();
             String newToken = tokenize(user);
 
-            return Mono.just(TokenResponse.builder()
-                    .token(newToken)
-                    .build());
+            return Mono.justOrEmpty(newToken);
         } catch (ExpiredJwtException e) {
             String user = e.getClaims().getSubject();
             String newToken = tokenize(user);
 
-            return Mono.just(TokenResponse.builder()
-                    .token(newToken)
-                    .build());
+            return Mono.justOrEmpty(newToken);
         } catch (JwtException e) {
             throw InvalidTokenException.EXCEPTION;
         }