diff --git a/candle-examples/Cargo.toml b/candle-examples/Cargo.toml
index 864d2f6a0..5b90f140c 100644
--- a/candle-examples/Cargo.toml
+++ b/candle-examples/Cargo.toml
@@ -25,7 +25,7 @@ hf-hub = { workspace = true, features = ["tokio"] }
 image = { workspace = true }
 intel-mkl-src = { workspace = true, optional = true }
 num-traits = { workspace = true }
-pyo3 = { version = "0.20.0", features = ["auto-initialize"], optional = true }
+pyo3 = { version = "0.21.0", features = ["auto-initialize"], optional = true }
 rayon = { workspace = true }
 rubato = { version = "0.15.0", optional = true }
 safetensors = { workspace = true }
diff --git a/candle-pyo3/Cargo.toml b/candle-pyo3/Cargo.toml
index 7c6fbd689..ed73e10a2 100644
--- a/candle-pyo3/Cargo.toml
+++ b/candle-pyo3/Cargo.toml
@@ -20,7 +20,7 @@ candle-nn = { workspace = true }
 candle-onnx = { workspace = true, optional = true }
 half = { workspace = true }
 intel-mkl-src = { workspace = true, optional = true }
-pyo3 = { version = "0.20.0", features = ["extension-module", "abi3-py38"] }
+pyo3 = { version = "0.21.0", features = ["extension-module", "abi3-py38"] }
 
 [build-dependencies]
 pyo3-build-config = "0.20"