diff --git a/Cargo.lock b/Cargo.lock
index b7a2b57..905d6e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -348,9 +348,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.20.2"
+version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "p256"
@@ -455,9 +455,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.25.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f239d656363bcee73afef85277f1b281e8ac6212a1d42aa90e55b90ed43c47a4"
+checksum = "fa8e48c12afdeb26aa4be4e5c49fb5e11c3efa0878db783a960eea2b9ac6dd19"
 dependencies = [
  "indoc",
  "libc",
@@ -472,19 +472,18 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.25.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "755ea671a1c34044fa165247aaf6f419ca39caa6003aee791a0df2713d8f1b6d"
+checksum = "bc1989dbf2b60852e0782c7487ebf0b4c7f43161ffe820849b56cf05f945cee1"
 dependencies = [
- "once_cell",
  "target-lexicon",
 ]
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.25.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc95a2e67091e44791d4ea300ff744be5293f394f1bafd9f78c080814d35956e"
+checksum = "c808286da7500385148930152e54fb6883452033085bf1f857d85d4e82ca905c"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -492,9 +491,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.25.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a179641d1b93920829a62f15e87c0ed791b6c8db2271ba0fd7c2686090510214"
+checksum = "83a0543c16be0d86cf0dbf2e2b636ece9fd38f20406bb43c255e0bc368095f92"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -504,9 +503,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.25.0"
+version = "0.27.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dff85ebcaab8c441b0e3f7ae40a6963ecea8a9f5e74f647e33fcf5ec9a1e89e"
+checksum = "2a00da2ce064dcd582448ea24a5a26fa9527e0483103019b741ebcbe632dcd29"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 37e0c6b..c8b2a2b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,5 +10,5 @@ name = "umu_mkpatch"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.25.0", features = ["extension-module"] }
+pyo3 = { version = "0.27.0", features = ["extension-module"] }
 ssh-key = { version = "0.6.7", features = ["ed25519"] }