diff --git a/Cargo.toml b/Cargo.toml
index 05bbaa0..e44da5b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT"
 description = "Vector search diagnostics engine for RAG/LLM systems"
 
 [dependencies]
-pyo3 = { version = "0.23", features = ["extension-module"] }
+pyo3 = { version = "0.29", features = ["extension-module"] }
 numpy = "0.23"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"