diff --git a/Cargo.toml b/Cargo.toml
index 82a57fb..df4aca1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -74,7 +74,7 @@ anyhow = "1.0"
 log = { version = "0.4", optional = true }
 
 [build-dependencies]
-pyo3-build-config = { version = "0.28", features = ["resolve-config"] }
+pyo3-build-config = { version = "0.29", features = ["resolve-config"] }
 
 [dev-dependencies]
 proptest = "1.5"