diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1a861d4..3f5021f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -72,7 +72,7 @@ jobs:
       - name: Install rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.65.0
+          toolchain: 1.70.0
           profile: minimal
           override: true
       - name: Install java
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a54ad0..7ef264e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.1] - 2024-10-03
+
+### Changed
+
+- Bumped syn crate dependency to 2
+
 ## [0.4.0] - 2023-09-25
 
 ### Added
@@ -58,5 +64,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Changed jvalue into a union
 
-[unreleased]: https://github.com/jni-rs/jni-sys/compare/v0.3.0...HEAD
+[unreleased]: https://github.com/jni-rs/jni-sys/compare/v0.4.1...HEAD
+[0.4.1]: https://github.com/jni-rs/jni-sys/compare/v0.4.0...v0.4.1
+[0.4.0]: https://github.com/jni-rs/jni-sys/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/jni-rs/jni-sys/compare/v0.2.5...v0.3.0
diff --git a/Cargo.toml b/Cargo.toml
index 4fdc72e..5a04dac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,16 +1,16 @@
 [package]
 name = "jni-sys"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["Steven Fackler <sfackler@gmail.com>", "Robert Bragg <robert@sixbynine.org>"]
 license = "MIT/Apache-2.0"
 description = "Rust definitions corresponding to jni.h"
 repository = "https://github.com/jni-rs/jni-sys"
-documentation = "https://docs.rs/jni-sys/0.4.0"
+documentation = "https://docs.rs/jni-sys"
 readme = "README.md"
 categories = ["external-ffi-bindings"]
 keywords = ["java", "jni"]
 edition = "2021"
-rust-version = "1.65.0"
+rust-version = "1.70.0"
 exclude = [
     "/.github",
     "/tests"
diff --git a/systest/build.rs b/systest/build.rs
index 1b73c9a..d5ed98f 100644
--- a/systest/build.rs
+++ b/systest/build.rs
@@ -7,11 +7,11 @@ fn main() {
     let windows = target.contains("windows");
 
     let (platform_dir, lib_dir) = if target.contains("linux") {
-        ("linux", "jre/lib/amd64/server")
+        ("linux", "lib/server")
     } else if target.contains("windows") {
         ("win32", "lib")
     } else if target.contains("darwin") {
-        ("darwin", "jre/lib/server")
+        ("darwin", "lib/server")
     } else {
         panic!("unsupported target");
     };