diff --git a/backend/src/main/java/com/openisle/config/CachingConfig.java b/backend/src/main/java/com/openisle/config/CachingConfig.java
index 9094efa1a..70c14f593 100644
--- a/backend/src/main/java/com/openisle/config/CachingConfig.java
+++ b/backend/src/main/java/com/openisle/config/CachingConfig.java
@@ -97,8 +97,10 @@ public class CachingConfig {
         // 个别缓存单独设置 TTL 时间
         Map<String, RedisCacheConfiguration> cacheConfigs = new HashMap<>();
         RedisCacheConfiguration oneHourConfig = config.entryTtl(Duration.ofHours(1));
+        RedisCacheConfiguration tenMinutesConfig = config.entryTtl(Duration.ofMinutes(10));
         cacheConfigs.put(TAG_CACHE_NAME, oneHourConfig);
         cacheConfigs.put(CATEGORY_CACHE_NAME, oneHourConfig);
+        cacheConfigs.put(POST_CACHE_NAME, tenMinutesConfig);
 
         return RedisCacheManager.builder(connectionFactory)
                 .cacheDefaults(config)
diff --git a/backend/src/main/java/com/openisle/service/PostService.java b/backend/src/main/java/com/openisle/service/PostService.java
index 36796e346..b9774bf34 100644
--- a/backend/src/main/java/com/openisle/service/PostService.java
+++ b/backend/src/main/java/com/openisle/service/PostService.java
@@ -190,7 +190,7 @@ public class PostService {
         return saved;
     }
     @CacheEvict(
-            value = CachingConfig.POST_CACHE_NAME, allEntries = true
+        value = CachingConfig.POST_CACHE_NAME, allEntries = true
     )
     public Post createPost(String username,
                            Long categoryId,