diff --git a/Cargo.lock b/Cargo.lock
index cc457d87..449b8d7e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -227,9 +227,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.21.1"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a8b1990bd018761768d5e608a13df8bd1ac5f678456e0f301bb93e5f3ea16b"
+checksum = "a5e00b96a521718e08e03b1a622f01c8a8deb50719335de3f60b3b3950f069d8"
 dependencies = [
  "cfg-if",
  "libc",
@@ -242,9 +242,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.21.1"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "650dca34d463b6cdbdb02b1d71bfd6eb6b6816afc708faebb3bac1380ff4aef7"
+checksum = "7883df5835fafdad87c0d888b266c8ec0f4c9ca48a5bed6bbb592e8dedee1b50"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -252,9 +252,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.21.1"
+version = "0.21.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09a7da8fc04a8a2084909b59f29e1b8474decac98b951d77b80b26dc45f046ad"
+checksum = "01be5843dc60b916ab4dad1dca6d20b9b4e6ddc8e15f50c47fe6d85f1fb97403"
 dependencies = [
  "libc",
  "pyo3-build-config",
diff --git a/Cargo.toml b/Cargo.toml
index 871515c5..3cbc69d3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,7 +45,7 @@ encoding_rs = { version = "0.8", default-features = false }
 half = { version = "2.4.1", default-features = false }
 itoa = { version = "1", default-features = false }
 once_cell = { version = "1", default-features = false, features = ["race"] }
-pyo3 = { version = "^0.21.1", default-features = false, features = ["extension-module"] }
+pyo3 = { version = "^0.21.2", default-features = false, features = ["extension-module"] }
 rmp = { version = "^0.8.10", default-features = false, features = ["std"] }
 rmp-serde = { version = "1", default-features = false }
 serde = { version = "1", default-features = false }