diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
index 9e24aa0..0b1b875 100644
--- a/.github/workflows/github-actions-demo.yml
+++ b/.github/workflows/github-actions-demo.yml
@@ -19,4 +19,6 @@ jobs:
           script: |
             cd /home/ec2-user/apps/step1
             sh deploy.sh
-            nohup java -jar $JAR_NAME & 
+            JAR_NAME=$(ls -tr $REPOSITORY/ | grep jar | head -n 1)
+            echo "> JAR Name: $JAR_NAME"
+            nohup java -jar $JAR_NAME &