diff --git a/contrib/scale-nvmet-start.sh b/contrib/scale-nvmet-start.sh
index 8a46078..f09d715 100755
--- a/contrib/scale-nvmet-start.sh
+++ b/contrib/scale-nvmet-start.sh
@@ -84,7 +84,7 @@ install_nvmetcli() {
   python3 setup.py install --install-scripts=${HOME}/.local/bin
 
   # install to root home dir
-  pip install configshell_fb
+  pip install configshell_fb==1.1.30
 
   # remove source
   cd "${SCRIPTDIR}"