diff --git a/Cargo.lock b/Cargo.lock
index 2c68dcac2..cdcc7a609 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -434,7 +434,7 @@ dependencies = [
 
 [[package]]
 name = "pydantic-core"
-version = "2.27.2"
+version = "2.28.0"
 dependencies = [
  "ahash",
  "base64",
@@ -459,9 +459,9 @@ 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",
@@ -478,9 +478,9 @@ 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",
  "python3-dll-a",
@@ -489,9 +489,9 @@ 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",
@@ -499,9 +499,9 @@ 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",
@@ -511,9 +511,9 @@ 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",
@@ -524,9 +524,9 @@ dependencies = [
 
 [[package]]
 name = "python3-dll-a"
-version = "0.2.11"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b9e268ee1be609e93a13eb06839f68f67e5fe0fb4049834d261c2d5091c1b6d"
+checksum = "9b66f9171950e674e64bad3456e11bb3cca108e5c34844383cfe277f45c8a7a8"
 dependencies = [
  "cc",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index efa05db7f..bda27781c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pydantic-core"
-version = "2.27.2"
+version = "2.28.0"
 edition = "2021"
 license = "MIT"
 homepage = "https://github.com/pydantic/pydantic-core"
@@ -29,7 +29,7 @@ rust-version = "1.75"
 [dependencies]
 # TODO it would be very nice to remove the "py-clone" feature as it can panic,
 # but needs a bit of work to make sure it's not used in the codebase
-pyo3 = { version = "0.23.3", features = ["generate-import-lib", "num-bigint", "py-clone"] }
+pyo3 = { version = "0.23.4", features = ["generate-import-lib", "num-bigint", "py-clone"] }
 regex = "1.11.1"
 strum = { version = "0.26.3", features = ["derive"] }
 strum_macros = "0.26.4"