diff --git a/bindings/python/Cargo.lock b/bindings/python/Cargo.lock
index a3d8abb..4a8b632 100644
--- a/bindings/python/Cargo.lock
+++ b/bindings/python/Cargo.lock
@@ -20,7 +20,7 @@ version = "0.3.0"
 dependencies = [
  "enhex_core",
  "pyo3",
- "pyo3-build-config 0.21.2",
+ "pyo3-build-config",
 ]
 
 [[package]]
@@ -73,28 +73,18 @@ dependencies = [
  "libc",
  "once_cell",
  "portable-atomic",
- "pyo3-build-config 0.28.3",
+ "pyo3-build-config",
  "pyo3-ffi",
  "pyo3-macros",
 ]
 
-[[package]]
-name = "pyo3-build-config"
-version = "0.21.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7883df5835fafdad87c0d888b266c8ec0f4c9ca48a5bed6bbb592e8dedee1b50"
-dependencies = [
- "once_cell",
- "target-lexicon 0.12.16",
-]
-
 [[package]]
 name = "pyo3-build-config"
 version = "0.28.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e368e7ddfdeb98c9bca7f8383be1648fd84ab466bf2bc015e94008db6d35611e"
 dependencies = [
- "target-lexicon 0.13.5",
+ "target-lexicon",
 ]
 
 [[package]]
@@ -104,7 +94,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f29e10af80b1f7ccaf7f69eace800a03ecd13e883acfacc1e5d0988605f651e"
 dependencies = [
  "libc",
- "pyo3-build-config 0.28.3",
+ "pyo3-build-config",
 ]
 
 [[package]]
@@ -127,7 +117,7 @@ checksum = "c4cdc218d835738f81c2338f822078af45b4afdf8b2e33cbb5916f108b813acb"
 dependencies = [
  "heck",
  "proc-macro2",
- "pyo3-build-config 0.28.3",
+ "pyo3-build-config",
  "quote",
  "syn",
 ]
@@ -158,12 +148,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "target-lexicon"
-version = "0.12.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
-
 [[package]]
 name = "target-lexicon"
 version = "0.13.5"
diff --git a/bindings/python/Cargo.toml b/bindings/python/Cargo.toml
index b8abb28..efa7adf 100644
--- a/bindings/python/Cargo.toml
+++ b/bindings/python/Cargo.toml
@@ -15,4 +15,4 @@ pyo3 = { version = "0.28", features = ["extension-module"] }
 enhex_core = { path = "../../core" }
 
 [build-dependencies]
-pyo3-build-config = "0.21"
+pyo3-build-config = "0.28"