diff --git a/Cargo.lock b/Cargo.lock
index db161725..f5d90166 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1413,9 +1413,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.23.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e484fd2c8b4cb67ab05a318f1fd6fa8f199fcc30819f08f07d200809dba26c15"
+checksum = "57fe09249128b3173d092de9523eaa75136bf7ba85e0d69eca241c7939c933cc"
 dependencies = [
  "cfg-if",
  "indoc",
@@ -1431,9 +1431,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.23.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e0469a84f208e20044b98965e1561028180219e35352a2afaf2b942beff3b"
+checksum = "1cd3927b5a78757a0d71aa9dff669f903b1eb64b54142a9bd9f757f8fde65fd7"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -1441,9 +1441,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.23.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb1547a7f9966f6f1a0f0227564a9945fe36b90da5a93b3933fc3dc03fae372d"
+checksum = "dab6bb2102bd8f991e7749f130a70d05dd557613e39ed2deeee8e9ca0c4d548d"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -1451,9 +1451,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.23.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdb6da8ec6fa5cedd1626c886fc8749bdcbb09424a86461eb8cdf096b7c33257"
+checksum = "91871864b353fd5ffcb3f91f2f703a22a9797c91b9ab497b1acac7b07ae509c7"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -1463,9 +1463,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.23.3"
+version = "0.23.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38a385202ff5a92791168b1136afae5059d3ac118457bb7bc304c197c2d33e7d"
+checksum = "43abc3b80bc20f3facd86cd3c60beed58c3e2aa26213f3cda368de39c60a27e4"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 0488b51e..af12dd0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -143,7 +143,7 @@ lingua-zulu-language-model = { path = "language-models/zu", version = "1.1.0", o
 ahash = "0.8.11"
 cld2 = { version = "1.0.2", optional = true }
 indoc = { version = "2.0.5", optional = true }
-pyo3 = { version = "0.23.3", optional = true }
+pyo3 = { version = "0.23.4", optional = true }
 rayon = "1.10.0"
 serde-pickle = { version = "1.2.0", optional = true }
 titlecase = { version = "3.3.0", optional = true }