diff --git a/requirements.txt b/requirements.txt
index e6ab9d2..dd6a52d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ aiosqlite==0.22.1
 # Processing
 tiktoken==0.7.0
 numpy==1.26.4
-scikit-learn==1.5.1
+scikit-learn==1.9.0
 
 # Claude API (scoring)
 anthropic>=0.40.0