diff --git a/libserverframe.spec b/libserverframe.spec
index 5c419df..7f5282c 100644
--- a/libserverframe.spec
+++ b/libserverframe.spec
@@ -2,7 +2,7 @@
 %define CommitVersion %(echo $COMMIT_VERSION)
 
 Name: libserverframe
-Version: 1.2.4
+Version: 1.2.5
 Release: 1%{?dist}
 Summary: network framework library
 License: AGPL v3.0
@@ -12,9 +12,9 @@ Source: http://github.com/happyfish100/libserverframe/%{name}-%{version}.tar.gz
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
-BuildRequires: libfastcommon-devel >= 1.0.74
+BuildRequires: libfastcommon-devel >= 1.0.75
 Requires: %__cp %__mv %__chmod %__grep %__mkdir %__install %__id
-Requires: libfastcommon >= 1.0.74
+Requires: libfastcommon >= 1.0.75
 
 %description
 common framework library 
diff --git a/src/sf_connection_manager.c b/src/sf_connection_manager.c
index 7981d8d..0e28323 100644
--- a/src/sf_connection_manager.c
+++ b/src/sf_connection_manager.c
@@ -176,7 +176,7 @@ static inline bool alive_array_cas(SFConnectionManager *cm,
         push_to_detect_queue(cm, group, new_alives);
         fast_mblock_delay_free_object(&cm->sptr_array_allocator, old_alives,
                 (cm->common_cfg->connect_timeout + cm->common_cfg->
-                 network_timeout) * group->all.count);
+                 network_timeout) * group->all.count * 4);
         return true;
     } else {
         fast_mblock_free_object(&cm->sptr_array_allocator, new_alives);