diff --git a/src/main/java/top/fjy8018/shiro/config/ShiroConfiguration.java b/src/main/java/top/fjy8018/shiro/config/ShiroConfiguration.java
index 2505adc..522c429 100644
--- a/src/main/java/top/fjy8018/shiro/config/ShiroConfiguration.java
+++ b/src/main/java/top/fjy8018/shiro/config/ShiroConfiguration.java
@@ -1,5 +1,6 @@
 package top.fjy8018.shiro.config;
 
+import org.apache.shiro.cache.MemoryConstrainedCacheManager;
 import org.apache.shiro.mgt.SecurityManager;
 import org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor;
 import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
@@ -72,6 +73,10 @@ public class ShiroConfiguration {
     @Bean("authRealm")
     public AuthRealm authRealm(@Qualifier("credentialsMatcher") CredentialsMatcher matcher) {
         AuthRealm authRealm = new AuthRealm();
+
+        // 设置缓存，内存缓存
+        authRealm.setCacheManager(new MemoryConstrainedCacheManager());
+
         authRealm.setCredentialsMatcher(matcher);
         return authRealm;
     }