diff --git a/Cargo.lock b/Cargo.lock
index 931653c0..70f4afa0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -82,16 +82,14 @@ dependencies = [
 
 [[package]]
 name = "bindgen"
-version = "0.69.4"
+version = "0.71.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a00dc851838a2120612785d195287475a3ac45514741da670b735818822129a0"
+checksum = "5f58bf3d7db68cfbac37cfc485a8d711e87e064c3d0fe0435b92f7a407f9d6b3"
 dependencies = [
  "bitflags",
  "cexpr",
  "clang-sys",
  "itertools",
- "lazy_static",
- "lazycell",
  "log",
  "prettyplease",
  "proc-macro2",
@@ -100,7 +98,6 @@ dependencies = [
  "rustc-hash",
  "shlex",
  "syn",
- "which",
 ]
 
 [[package]]
@@ -215,16 +212,6 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
 
-[[package]]
-name = "errno"
-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245"
-dependencies = [
- "libc",
- "windows-sys",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.12"
@@ -248,15 +235,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
-name = "home"
-version = "0.5.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
-dependencies = [
- "windows-sys",
-]
-
 [[package]]
 name = "humantime"
 version = "2.1.0"
@@ -293,18 +271,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "lazy_static"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-
-[[package]]
-name = "lazycell"
-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
-
 [[package]]
 name = "libc"
 version = "0.2.155"
@@ -327,12 +293,6 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
-[[package]]
-name = "linux-raw-sys"
-version = "0.4.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c"
-
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -530,22 +490,9 @@ checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
 
 [[package]]
 name = "rustc-hash"
-version = "1.1.0"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
-
-[[package]]
-name = "rustix"
-version = "0.38.32"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "65e04861e65f21776e67888bfbea442b3642beaa0138fdb1dd7a84a52dffdb89"
-dependencies = [
- "bitflags",
- "errno",
- "libc",
- "linux-raw-sys",
- "windows-sys",
-]
+checksum = "c7fb8039b3032c191086b10f11f319a6e99e1e82889c5cc6046f515c9db1d497"
 
 [[package]]
 name = "ryu"
@@ -648,7 +595,7 @@ dependencies = [
 
 [[package]]
 name = "tskit"
-version = "0.15.0-alpha.1"
+version = "0.15.0-alpha.2"
 dependencies = [
  "anyhow",
  "bincode",
@@ -697,18 +644,6 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
-[[package]]
-name = "which"
-version = "4.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87ba24419a2078cd2b0f2ede2691b6c66d8e47836da3b6db8265ebad47afbfc7"
-dependencies = [
- "either",
- "home",
- "once_cell",
- "rustix",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
diff --git a/Cargo.toml b/Cargo.toml
index 297afd9b..ff7acfc6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,7 +45,7 @@ humantime = {version = "2.1.0"}
 # chrono = "0.4.19"
 
 [build-dependencies]
-bindgen = "0.69.4"
+bindgen = "0.71.1"
 cc = { version = "1.0", features = ["parallel"] }
 pkg-config = "0.3"