diff --git a/requirements.txt b/requirements.txt
index f89bc147..f303095f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -98,7 +98,7 @@ optuna>=3.5.0
 beautifulsoup4>=4.12.0
 
 # ML Training Pipeline
-lightgbm>=3.3.0
+lightgbm>=3.3.5
 scipy>=1.9.0
 
 # RL Trading (optional - system works without these)