diff --git a/push-update.sh b/push-update.sh
index c6e970a..68a5ad3 100755
--- a/push-update.sh
+++ b/push-update.sh
@@ -1,15 +1,9 @@
-#!/bin/sh
+#!/bin/bash
 PATH_LIB='/lib/Image'
-array=('/var/www/10ballov','/var/www/predelanet','/var/www/zelenoemore','/var/www/d753_common')
-
-if [ ! -a CHANGELOG.md ]
-then
-    echo 'File CHANGELOG.md not exists.'
-    exit 1
-fi
-if [ test -n CHANGELOG.md ]
+PROJECTS=( "/var/www/10ballov" "/var/www/predelanet" "/var/www/zelenoemore" "/var/www/d753_common" )
+if [ ! test -n CHANGELOG.md ]
 then
-    echo 'CHANGELOG.md is empty.'
+    echo 'CHANGELOG.md not exists or empty.'
     exit 1
 fi
 git diff-index --quiet HEAD --
@@ -35,7 +29,7 @@ git push > /dev/null || exit 1
 
 MESSAGE="Update ${PATH_LIB} on ${VERSION}"
 CURRENT_DIR=`pwd`
-for project in "${array[@]}"
+for project in "${PROJECTS[@]}"
 do
 	echo "Update lib for ${i}...\n"
 	(cd "${project}${PATH_LIB}" &&