diff --git a/renren-admin/src/main/resources/ehcache.xml b/renren-admin/src/main/resources/ehcache.xml
index 553c9454..c9379564 100644
--- a/renren-admin/src/main/resources/ehcache.xml
+++ b/renren-admin/src/main/resources/ehcache.xml
@@ -34,8 +34,8 @@
     <cache name="selectDeptList"
            maxElementsInMemory="10000"
            eternal="false"
-           timeToIdleSeconds="600"
-           timeToLiveSeconds="6000"
+           timeToIdleSeconds="60"
+           timeToLiveSeconds="600"
            overflowToDisk="true"
            diskPersistent="true"
            memoryStoreEvictionPolicy="LRU"/>