diff --git a/DOCKER_DEPLOYMENT.md b/DOCKER_DEPLOYMENT.md
index f4f8560..8949118 100644
--- a/DOCKER_DEPLOYMENT.md
+++ b/DOCKER_DEPLOYMENT.md
@@ -197,7 +197,7 @@ docker system prune -f
    grep -E "ALPACA_(API|SECRET)_KEY" .env
    
    # Test connection
-   docker exec trading-system python3 -c "from src.data_handler import DataHandler; print(DataHandler().get_latest_price('AAPL'))"
+   docker exec trading-system python3 -c "from src.data_handler import DataHandler; print(DataHandler().get_latest_price('ETH/USD'))"
    ```
 
 3. **Health check failures**
diff --git a/Dockerfile b/Dockerfile
index 13f2c02..27447d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,7 +29,7 @@ USER trader
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-    CMD python3 -c "import sys; sys.path.append('src'); from src.data_handler import DataHandler; DataHandler().get_latest_price('AAPL')" || exit 1
+    CMD python3 -c "import sys; sys.path.append('src'); from src.data_handler import DataHandler; DataHandler().get_latest_price('ETH/USD')" || exit 1
 
 # Default command
 CMD ["python3", "main.py", "--mode", "paper"]
diff --git a/docker-compose.yml b/docker-compose.yml
index 6c661d3..c7b5cbc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,7 +11,7 @@ services:
       
       # Trading Configuration
       - STRATEGY_TYPE=${STRATEGY_TYPE:-enhanced}
-      - SYMBOL=${SYMBOL:-AAPL}
+      - SYMBOL=${SYMBOL:-ETH/USD}
       - TRADING_MODE=${TRADING_MODE:-paper}
       
       # Risk Management
@@ -41,7 +41,7 @@ services:
     
     # Health check
     healthcheck:
-      test: ["CMD", "python3", "-c", "import sys; sys.path.append('src'); from src.data_handler import DataHandler; DataHandler().get_latest_price('AAPL')"]
+      test: ["CMD", "python3", "-c", "import sys; sys.path.append('src'); from src.data_handler import DataHandler; DataHandler().get_latest_price('ETH/USD')"]
       interval: 60s
       timeout: 30s
       retries: 3