diff --git a/src/main/java/com/example/silverbridgeX_user/batch/tasklet/PruneEdgeTasklet.java b/src/main/java/com/example/silverbridgeX_user/batch/tasklet/PruneEdgeTasklet.java
index fa79bdf..c5f7f9b 100644
--- a/src/main/java/com/example/silverbridgeX_user/batch/tasklet/PruneEdgeTasklet.java
+++ b/src/main/java/com/example/silverbridgeX_user/batch/tasklet/PruneEdgeTasklet.java
@@ -18,8 +18,9 @@ public class PruneEdgeTasklet implements Tasklet {
     @Override
     public RepeatStatus execute(@NonNull StepContribution con, @NonNull ChunkContext ctx) {
         String del = """
-                    MATCH (:User)-[r:PREFERRED]->(:Activity)
-                    WHERE r.score < 0.4
+                   MATCH ()-[r]->()
+                    WHERE (type(r) = "PREFERRED" OR type(r) = "SIMILAR")
+                      AND r.score < 0.85
                     DELETE r
                 """;
         recommendActivityService.execWrite(del);
diff --git a/src/main/java/com/example/silverbridgeX_user/batch/tasklet/UpdateGraphTasklet.java b/src/main/java/com/example/silverbridgeX_user/batch/tasklet/UpdateGraphTasklet.java
index 310ea34..6a606ee 100644
--- a/src/main/java/com/example/silverbridgeX_user/batch/tasklet/UpdateGraphTasklet.java
+++ b/src/main/java/com/example/silverbridgeX_user/batch/tasklet/UpdateGraphTasklet.java
@@ -87,7 +87,7 @@ WITH pair AS (
                       (CASE
                          WHEN cnt1 = 0 AND cnt2 > 0 THEN pref_sim
                          ELSE 0.7 * pref_sim + 0.3 * act_sim
-                      END) >= 0.5;
+                      END) >= 0.9;
                 """;
 
         List<Map<String, Object>> simRows = jdbc.queryForList(similarSql, Map.of());
diff --git a/src/main/java/com/example/silverbridgeX_user/matching/scheduler/MatchingScheduler.java b/src/main/java/com/example/silverbridgeX_user/matching/scheduler/MatchingScheduler.java
index f289cd3..ea65478 100644
--- a/src/main/java/com/example/silverbridgeX_user/matching/scheduler/MatchingScheduler.java
+++ b/src/main/java/com/example/silverbridgeX_user/matching/scheduler/MatchingScheduler.java
@@ -1,19 +1,18 @@
 package com.example.silverbridgeX_user.matching.scheduler;
 
 import com.example.silverbridgeX_user.matching.service.MatchingService;
+import java.time.LocalDateTime;
 import lombok.RequiredArgsConstructor;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
-import java.time.LocalDateTime;
-
 @Component
 @RequiredArgsConstructor
 public class MatchingScheduler {
 
     private final MatchingService matchingService;
 
-    @Scheduled(cron = "0 18,38,58 * * * *")
+    @Scheduled(cron = "0 9,19,29,39,49,59 * * * *")
     public void executeMatching() {
         System.out.println("매칭 알고리즘 실행됨: " + LocalDateTime.now());
         matchingService.executeMatchingAlgorithm();
diff --git a/src/main/java/com/example/silverbridgeX_user/user/jwt/JwtTokenUtils.java b/src/main/java/com/example/silverbridgeX_user/user/jwt/JwtTokenUtils.java
index 89382ff..78a3223 100644
--- a/src/main/java/com/example/silverbridgeX_user/user/jwt/JwtTokenUtils.java
+++ b/src/main/java/com/example/silverbridgeX_user/user/jwt/JwtTokenUtils.java
@@ -35,8 +35,7 @@ public JwtTokenUtils(
             @Value("${jwt.secret}") String jwtSecret,
             @Value("${jwt.accessExpirationTime}") int accessExpirationTime,
             @Value("${jwt.refreshExpirationTime}") int refreshExpirationTime
-    )
-    {
+    ) {
         this.signingKey = Keys.hmacShaKeyFor(jwtSecret.getBytes());
         this.jwtParser = Jwts.parserBuilder().setSigningKey(this.signingKey).build();
         this.accessExpirationTime = accessExpirationTime;
@@ -66,6 +65,7 @@ public JwtDto generateToken(UserDetails userDetails) {
                 .setExpiration(Date.from(Instant.now().plusSeconds(refreshExpirationTime)));
         String refreshToken = Jwts.builder()
                 .setClaims(refreshTokenClaims)
+                .claim("authorities", authorities)
                 .signWith(signingKey)
                 .compact();
 
@@ -111,7 +111,7 @@ public boolean validateToken(String token) {
     }
 
     // 문자열로 저장된 authorities를 다시 Collection으로 변환
-    public Collection<? extends GrantedAuthority> getAuthFromClaims(Claims claims){
+    public Collection<? extends GrantedAuthority> getAuthFromClaims(Claims claims) {
 
         String authoritiesString = (String) claims.get("authorities"); // authorities 정보 가져오기
 
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index fd678b6..9ae1f09 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,6 +1,8 @@
 spring:
   profiles:
     active: local
+  jackson:
+    time-zone: Asia/Seoul
 
 springdoc:
   swagger-ui: