diff --git a/INSTALL b/INSTALL
index 228f9e5..b827a7a 100644
--- a/INSTALL
+++ b/INSTALL
@@ -6,11 +6,20 @@ Please visit the libfastcommon Home Page for more detail.
 English language: https://github.com/happyfish100/libfastcommon
 Chinese language: http://www.fastken.com/
 
+[Optional Step]
+You can enable io_uring for higher performance when Linux kernel version >= 6.2,
+CentOS, RockyLinux, AlmaLinux, RHEL etc.:
+   sudo yum install liburing-devel -y
+
+Debian, Ubuntu etc.:
+   sudo apt install liburing-dev -y
+
+
 # download libfastcommon source codes and install it,
 #   github address:  https://github.com/happyfish100/libfastcommon.git
 #   gitee address:   https://gitee.com/fastdfs100/libfastcommon.git
 # the command lines as:
 
    git clone https://github.com/happyfish100/libfastcommon.git
-   cd libfastcommon; git checkout V1.0.72
-   ./make.sh clean && ./make.sh && ./make.sh install
+   cd libfastcommon; git checkout V1.0.81
+   ./make.sh clean && ./make.sh && sudo ./make.sh install
diff --git a/make.sh b/make.sh
index d65518c..8f1f6a2 100755
--- a/make.sh
+++ b/make.sh
@@ -115,16 +115,14 @@ if [ "$uname" = "Linux" ]; then
 
   major_version=$(uname -r | awk -F . '{print $1;}')
   minor_version=$(uname -r | awk -F . '{print $2;}')
-  if [ $major_version -eq 5 ] && [ $minor_version -ge 14 ]; then
-    out=$(grep -F IORING_OP_SEND_ZC /usr/include/liburing/io_uring.h)
+  if [ $major_version -eq 5 -a $minor_version -ge 14 ] || [ $major_version -gt 5 ]; then
+    out=$(grep -F IORING_OP_SEND_ZC /usr/include/liburing/io_uring.h 2>/dev/null)
     if [ -n "$out" ]; then
       IOEVENT_USE=IOEVENT_USE_URING
       LIBS="$LIBS -luring"
     else
       IOEVENT_USE=IOEVENT_USE_EPOLL
     fi
-  elif [ $major_version -gt 5 ]; then
-    IOEVENT_USE=IOEVENT_USE_URING
   else
     IOEVENT_USE=IOEVENT_USE_EPOLL
   fi