diff --git a/docker-compose.yaml b/docker-compose.yaml
index f4b8808..c5b4187 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -1,7 +1,7 @@
 version: '3.8'
 services:
     java-maven-app:
-      image: nanajanashia/demo-app:java-maven-1.0
+      image: "nanajanashia/demo-app:${TAG}"
       ports:
         - 8080:8080
     postgres:
diff --git a/server-cmds.sh b/server-cmds.sh
index 300f1a9..3344944 100644
--- a/server-cmds.sh
+++ b/server-cmds.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 
+export TAG=java-maven-1.0
 docker-compose -f docker-compose.yaml up --detach
 echo "success"
diff --git a/target/classes/com/example/Application.class b/target/classes/com/example/Application.class
deleted file mode 100644
index fb82c20..0000000
Binary files a/target/classes/com/example/Application.class and /dev/null differ