diff --git a/stock-lab/app/main.py b/stock-lab/app/main.py
index 391521e..7de5e9f 100644
--- a/stock-lab/app/main.py
+++ b/stock-lab/app/main.py
@@ -124,7 +124,8 @@ def auto_trade():
     """AI 자동 매매 트리거 (Windows AI Server Proxy)"""
     print(f"[Proxy] Triggering Auto Trade at {WINDOWS_AI_SERVER_URL}...")
     try:
-        resp = requests.post(f"{WINDOWS_AI_SERVER_URL}/trade/auto", timeout=120)
+        # 빈 JSON Body를 명시적으로 전송하여 422 에러 방지
+        resp = requests.post(f"{WINDOWS_AI_SERVER_URL}/trade/auto", json={}, timeout=120)
         
         if resp.status_code != 200:
             print(f"[ProxyError] Auto Trade Error: {resp.status_code} {resp.text}")
@@ -144,7 +145,8 @@ def analyze_market():
     """Windows PC를 통한 AI 시장 분석"""
     print(f"[Proxy] Analyzing Market at {WINDOWS_AI_SERVER_URL}...")
     try:
-        resp = requests.post(f"{WINDOWS_AI_SERVER_URL}/analyze/portfolio", timeout=120)
+        # 빈 JSON Body 전송
+        resp = requests.post(f"{WINDOWS_AI_SERVER_URL}/analyze/portfolio", json={}, timeout=120)
         
         if resp.status_code != 200:
              print(f"[ProxyError] Analyze Error: {resp.status_code} {resp.text}")