diff --git a/INSTALL b/INSTALL
index 72862c1..9d48b9e 100644
--- a/INSTALL
+++ b/INSTALL
@@ -12,6 +12,6 @@ Chinese language: http://www.fastken.com/
 # the command lines as:
 
    git clone https://github.com/happyfish100/libfastcommon.git
-   cd libfastcommon; git checkout V1.0.41
+   cd libfastcommon; git checkout V1.0.42
    ./make.sh clean && ./make.sh && ./make.sh install
 
diff --git a/libfastcommon.spec b/libfastcommon.spec
index 32b672f..6f0a849 100644
--- a/libfastcommon.spec
+++ b/libfastcommon.spec
@@ -4,7 +4,7 @@
 %define CommitVersion %(echo $COMMIT_VERSION)
 
 Name: libfastcommon
-Version: 1.0.41
+Version: 1.0.42
 Release: 1%{?dist}
 Summary: c common functions library extracted from my open source projects FastDFS
 License: LGPL