diff --git a/Cargo.lock b/Cargo.lock
index e50e495..f3a3705 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -563,9 +563,9 @@ checksum = "8bccbff07d5ed689c4087d20d7307a52ab6141edeedf487c3876a55b86cf63df"
 
 [[package]]
 name = "pyo3"
-version = "0.22.6"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f402062616ab18202ae8319da13fa4279883a2b8a9d9f83f20dbade813ce1884"
+checksum = "7ebb0c0cc0de9678e53be9ccf8a2ab53045e6e3a8be03393ceccc5e7396ccb40"
 dependencies = [
  "cfg-if",
  "indoc",
@@ -581,9 +581,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.22.6"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b14b5775b5ff446dd1056212d778012cbe8a0fbffd368029fd9e25b514479c38"
+checksum = "80e3ce69c4ec34476534b490e412b871ba03a82e35604c3dfb95fcb6bfb60c09"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -591,9 +591,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.22.6"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ab5bcf04a2cdcbb50c7d6105de943f543f9ed92af55818fd17b660390fc8636"
+checksum = "3b09f311c76b36dfd6dd6f7fa6f9f18e7e46a1c937110d283e80b12ba2468a75"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -601,9 +601,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.22.6"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fd24d897903a9e6d80b968368a34e1525aeb719d568dba8b3d4bfa5dc67d453"
+checksum = "fd4f74086536d1e1deaff99ec0387481fb3325c82e4e48be0e75ab3d3fcb487a"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -613,9 +613,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.22.6"
+version = "0.23.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36c011a03ba1e50152b4b394b479826cad97e7a21eb52df179cd91ac411cbfbe"
+checksum = "9e77dfeb76b32bbf069144a5ea0a36176ab59c8db9ce28732d0f06f096bbfbc8"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 55ab5b3..8465569 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,7 @@ num-traits = "0.2"
 memmap2 = "0.9"
 git-version = "0.3"
 project-root = "0.2"
-pyo3 = { version = "0.22", optional = true }
+pyo3 = { version = "0.23", optional = true }
 
 [dev-dependencies]
 test-log = "0.2"