diff --git a/app.sh b/app.sh
index b15922d..eb5c2b8 100644
--- a/app.sh
+++ b/app.sh
@@ -6,7 +6,7 @@
   git config --global user.name "$GIT_USERNAME"
 
   echo "clone repository..."
-  GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -i $GIT_REPO_DEPLOY_KEY" git clone "$GIT_REPO_URL" "$GIT_REPO_PATH" --quiet &> /dev/null
+  GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -i $GIT_REPO_DEPLOY_KEY" git clone "$GIT_REPO_URL" "$GIT_REPO_PATH" --quiet > /dev/null
   cd "$GIT_REPO_PATH"
 
 while true ; do
@@ -68,11 +68,11 @@ while true ; do
     sed -i -r '/^# [0-9]{4}-[0-9]{2}-[0-9]{2}\s[0-9]{2}\:[0-9]{2}\:[0-9]{2}\sby\sRouterOS\s[0-9\s\.]+/d' "config_${FQDN}.rsc"
     git add "config_${FQDN}.rsc"
     echo "commit config for ${FQDN} ..."
-    git commit -m "update config_${FQDN}" --quiet &> /dev/null
+    git commit -m "update config_${FQDN}" --quiet > /dev/null
   done <<< "$DEVICES"
 
   echo "push config(s)..."
-  GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -i $GIT_REPO_DEPLOY_KEY" git push &> /dev/null
+  GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no -i $GIT_REPO_DEPLOY_KEY" git push > /dev/null
 
   # Restore the original IFS value
   IFS=$OLD_IFS