diff --git a/.github/workflows/demo.yml b/.github/workflows/demo.yml
index 8c91ce9..644d4c5 100644
--- a/.github/workflows/demo.yml
+++ b/.github/workflows/demo.yml
@@ -34,19 +34,20 @@ jobs:
       - name: Get old instance and snapshot name
         run: | 
           echo "OLD_INSTANCE_SNAPSHOT_NAME=$(aws lightsail get-instance-snapshots | grep '"name": "CasaOS-Demo-Snapshot-[0-9]' | sed 's/ //g' | sed 's/"//g' | sed 's/,//g' | sed 's/name://g')" >> $GITHUB_ENV
+          echo "OLD_INSTANCE_SNAPSHOT_NAME=${{ env.OLD_INSTANCE_SNAPSHOT_NAME }}
           echo "OLD_INSTANCE_NAME=$(aws lightsail get-instances | grep '"name": "CasaOS-Demo-[0-9]' | sed 's/ //g' | sed 's/"//g' | sed 's/,//g' | sed 's/name://g')" >> $GITHUB_ENV
+          echo "OLD_INSTANCE_NAME=${{ env.OLD_INSTANCE_NAME }}
           
-      - name: create-instances-from-snapshot
+      - name: Create instances from snapshot
         run: | 
           echo "NEW_INSTANCE_NAME=CasaOS-Demo-$(date +%s)" >> $GITHUB_ENV
-          echo ${{ env.OLD_INSTANCE_SNAPSHOT_NAME }}
           aws lightsail create-instances-from-snapshot \
               --instance-snapshot-name ${{ env.OLD_INSTANCE_SNAPSHOT_NAME }} \
               --instance-names ${{ env.NEW_INSTANCE_NAME }} \
               --availability-zone us-west-2a \
               --bundle-id large_2_0
               
-      - name: wait for new instance running
+      - name: Wait for new instance running
         run: |
           TIMEOUT=$(($(date +%s)+600))
           while [ $(date +%s) -gt $TIMEOUT ] \