diff --git a/crates/voicevox_core_python_api/poetry.lock b/crates/voicevox_core_python_api/poetry.lock
index 6b5e0a326..46d8c72cc 100644
--- a/crates/voicevox_core_python_api/poetry.lock
+++ b/crates/voicevox_core_python_api/poetry.lock
@@ -446,25 +446,25 @@ files = [
 
 [[package]]
 name = "maturin"
-version = "1.7.4"
+version = "1.8.1"
 description = "Build and publish crates with pyo3, cffi and uniffi bindings as well as rust binaries as python packages"
 optional = false
 python-versions = ">=3.7"
 groups = ["dev"]
 files = [
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+    {file = "maturin-1.8.1-py3-none-macosx_10_12_x86_64.macosx_11_0_arm64.macosx_10_12_universal2.whl", hash = "sha256:8d8251a95682c83ea60988c804b620c181911cd824aa107b4a49ac5333c92968"},
+    {file = "maturin-1.8.1-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:b9fc1a4354cac5e32c190410208039812ea88c4a36bd2b6499268ec49ef5de00"},
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+    {file = "maturin-1.8.1-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.musllinux_1_1_aarch64.whl", hash = "sha256:f9f5c47521924b6e515cbc652a042fe5f17f8747445be9d931048e5d8ddb50a4"},
+    {file = "maturin-1.8.1-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.musllinux_1_1_armv7l.whl", hash = "sha256:0f4407c7353c31bfbb8cdeb82bc2170e474cbfb97b5ba27568f440c9d6c1fdd4"},
+    {file = "maturin-1.8.1-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.musllinux_1_1_ppc64le.whl", hash = "sha256:ec49cd70cad3c389946c6e2bc0bd50772a7fcb463040dd800720345897eec9bf"},
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+    {file = "maturin-1.8.1-py3-none-win32.whl", hash = "sha256:d678407713f3e10df33c5b3d7a343ec0551eb7f14d8ad9ba6febeb96f4e4c75c"},
+    {file = "maturin-1.8.1-py3-none-win_amd64.whl", hash = "sha256:a526f90fe0e5cb59ffb81f4ff547ddc42e823bbdeae4a31012c0893ca6dcaf46"},
+    {file = "maturin-1.8.1-py3-none-win_arm64.whl", hash = "sha256:e95f077fd2ddd2f048182880eed458c308571a534be3eb2add4d3dac55bf57f4"},
+    {file = "maturin-1.8.1.tar.gz", hash = "sha256:49cd964aabf59f8b0a6969f9860d2cdf194ac331529caae14c884f5659568857"},
 ]
 
 [package.dependencies]
@@ -1060,4 +1060,4 @@ zstd = ["zstandard (>=0.18.0)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<3.13"
-content-hash = "dfa67767690389aada9e47c701cebb736157dbffdccaf0a0fd2350ce00fd059a"
+content-hash = "e99b11e58059059252f6207a6f4def4f6b767ccc61f6f62a26dcb11850f0fdd7"
diff --git a/crates/voicevox_core_python_api/pyproject.toml b/crates/voicevox_core_python_api/pyproject.toml
index 3353fe9b8..9c8dc1a0f 100644
--- a/crates/voicevox_core_python_api/pyproject.toml
+++ b/crates/voicevox_core_python_api/pyproject.toml
@@ -45,7 +45,7 @@ pydata-sphinx-theme = "0.16.1"
 sphinx-autoapi = "3.4.0"
 
 [tool.poetry.group.dev.dependencies]
-maturin = "1.7.4"
+maturin = "1.8.1"
 
 [tool.poetry.group.test.dependencies]
 pytest = "7.3.1"