diff --git a/README.md b/README.md
index 19a25ba..ac4a56f 100644
--- a/README.md
+++ b/README.md
@@ -21,14 +21,10 @@ cd futarin-api
 3. Create `.env` file
 ```
 touch .env
-# default 0(prod)
-echo "DEV_MODE=1"
-
 echo "VOICEVOX_API_KEY=[voicevox api key]" >> .env
-echo "VOICEVOX_URL=[endpoint url]" >> .env
 echo "OPENAI_API_KEY=[openAI api key]" >> .env
 
-# Only production mode (NOT DEV_MODE=1)
+# Only production mode(開発環境用)
 echo "STORAGE_ACCOUNT_NAME=[azure storage-account-name]" >> .env
 echo "SAS_TOKEN=[azure storage-account SAS token]" >> .env
 ```
@@ -41,8 +37,12 @@ sudo docker compose build
 
 5. Build and Start image
 ```
+# Production(本番環境)
 sudo docker compose up
-sudo docker compose up -d # detach
+# Development(開発環境)
+sudo docker compose -f docker-compose.yml -f docker-compose.dev.yml up
+# Detachモード
+sudo docker compose up -d
 ```
 6. access to localhost to check docs
 http://localhost/docs
@@ -76,10 +76,12 @@ http://localhost/docs
 │   │   ├── voicevox.py
 │   │   ├── voicevox_api.py
 │   │   └── whisper.py
+│   ├── uploads
 │   └── utils
 │       ├── __init__.py
 │       ├── config.py
 │       └── log.py
+├── docker-compose.dev.yml
 └── docker-compose.yml
 ```
 
diff --git a/api/utils/config.py b/api/utils/config.py
index 55a9ca2..e62848c 100644
--- a/api/utils/config.py
+++ b/api/utils/config.py
@@ -17,8 +17,8 @@ def check_env_variables():
         raise EnvironmentError(f"Missing environment variables: {', '.join(missing_vars)}")
 
 def get_is_dev_mode() -> bool:
-    IS_DEV = os.getenv("DEV_MODE")
-    return True if IS_DEV==1 else False
+    is_dev_mode = os.getenv("IS_DEV_MODE")
+    return int(is_dev_mode)==1
 
 def get_voicevox_url():
     return os.getenv("VOICEVOX_URL")
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
new file mode 100644
index 0000000..6ccb038
--- /dev/null
+++ b/docker-compose.dev.yml
@@ -0,0 +1,4 @@
+services:
+  api:
+    environment:
+      - IS_DEV_MODE=1
diff --git a/docker-compose.yml b/docker-compose.yml
index 2ac3a22..3a7e722 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,6 +14,8 @@ services:
   api:
     container_name: api
     image: futarin-api
+    environment:
+      - IS_DEV_MODE=0
     env_file:
       - .env
     build: