diff --git a/Cargo.lock b/Cargo.lock
index 03b7c56..fcadbd0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -878,9 +878,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04e8453b658fe480c3e70c8ed4e3d3ec33eb74988bd186561b0cc66b85c3bc4b"
+checksum = "e82ad98ce1991c9c70c3464ba4187337b9c45fcbbb060d46dca15f0c075e14e2"
 dependencies = [
  "cfg-if",
  "indoc",
@@ -895,9 +895,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a96fe70b176a89cff78f2fa7b3c930081e163d5379b4dcdf993e3ae29ca662e5"
+checksum = "5503d0b3aee2c7a8dbb389cd87cd9649f675d4c7f60ca33699a3e3859d81a891"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -905,9 +905,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "214929900fd25e6604661ed9cf349727c8920d47deff196c4e28165a6ef2a96b"
+checksum = "18a79e8d80486a00d11c0dcb27cd2aa17c022cc95c677b461f01797226ba8f41"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -915,9 +915,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dac53072f717aa1bfa4db832b39de8c875b7c7af4f4a6fe93cdbf9264cf8383b"
+checksum = "1f4b0dc7eaa578604fab11c8c7ff8934c71249c61d4def8e272c76ed879f03d4"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -927,9 +927,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.20.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7774b5a8282bd4f25f803b1f0d945120be959a36c72e08e7cd031c792fdfd424"
+checksum = "816a4f709e29ddab2e3cdfe94600d554c5556cad0ddfeea95c47b580c3247fa4"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 3a29671..eb6b393 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ itertools = "0.12.0"
 lazy_static = "1.4.0"
 ndarray = "0.15.6"
 petgraph = {version = "0.6.4", default-features = false, features = ["stable_graph"]}
-pyo3 = { version = "0.20.0", optional = true }
+pyo3 = { version = "0.20.1", optional = true }
 regex = "1.10.2"
 unic-char-range = "0.9.0"
 unic-ucd-category = "0.9.0"