diff --git a/.env.example b/.env.example
index cc2ffb0..ac91c53 100644
--- a/.env.example
+++ b/.env.example
@@ -16,8 +16,9 @@ CONFIDENCE_THRESHOLD=80
 # Database
 DB_PATH=data/trade_logs.db
 
-# Rate Limiting
-RATE_LIMIT_RPS=10.0
+# Rate Limiting (requests per second for KIS API)
+# Reduced to 5.0 to avoid "초당 거래건수 초과" errors (EGW00201)
+RATE_LIMIT_RPS=5.0
 
 # Trading Mode (paper / live)
 MODE=paper
diff --git a/src/config.py b/src/config.py
index 222afd0..2999f39 100644
--- a/src/config.py
+++ b/src/config.py
@@ -37,7 +37,8 @@ class Settings(BaseSettings):
     DB_PATH: str = "data/trade_logs.db"
 
     # Rate Limiting (requests per second for KIS API)
-    RATE_LIMIT_RPS: float = 10.0
+    # Reduced to 5.0 to avoid EGW00201 "초당 거래건수 초과" errors
+    RATE_LIMIT_RPS: float = 5.0
 
     # Trading mode
     MODE: str = Field(default="paper", pattern="^(paper|live)$")