diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2331cc6..75108b1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,7 +41,7 @@ jobs:
         # glog/log_severity.h(57): fatal error C1189: #error:  ERROR macro is defined. Define
         # GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
         os: [ "ubuntu-latest", "macos-latest" ]
-        rust_toolchain: [ "1.67", "stable" ]
+        rust_toolchain: [ "1.85", "stable" ]
 
     steps:
       - uses: actions/checkout@v6
@@ -73,7 +73,7 @@ jobs:
       matrix:
         # Help needed for Windows, vcpkg builds it, but I don't know how to make it discoverable
         os: [ "ubuntu-latest", "macos-latest" ]
-        rust_toolchain: [ "1.67", "stable" ]
+        rust_toolchain: [ "1.85", "stable" ]
 
     steps:
       - uses: actions/checkout@v6
diff --git a/Cargo.toml b/Cargo.toml
index f4153a1..696099a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "ceres-solver"
-version = "0.4.0"
-edition = "2021"
+version = "0.5.0"
+edition = "2024"
 readme = "README.md"
 description = "Safe Rust bindings for the Ceres Solver"
 repository = "https://github.com/light-curve/ceres-solver-rs"
 license = "MIT OR Apache-2.0"
-rust-version = "1.67.0"
+rust-version = "1.85.0"
 exclude = [".github"]
 
 [workspace]
@@ -22,7 +22,7 @@ source = ["ceres-solver-sys/source"]
 default = ["system"]
 
 [dependencies.ceres-solver-sys]
-version = "0.4.0"
+version = "0.5.0"
 path = "./ceres-solver-sys"
 
 [dependencies.thiserror]
diff --git a/ceres-solver-src/Cargo.toml b/ceres-solver-src/Cargo.toml
index af6887d..b92b6dd 100644
--- a/ceres-solver-src/Cargo.toml
+++ b/ceres-solver-src/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
 name = "ceres-solver-src"
-version = "0.4.0+ceres2.2.0-eigen3.4.0-glog0.7.1"
-edition = "2021"
+version = "0.5.0+ceres2.2.0-eigen3.4.0-glog0.7.1"
+edition = "2024"
 links = "ceres"
 readme = "README.md"
 description = "Rust distribution of Ceres Solver built as a minimal static library"
 repository = "https://github.com/light-curve/ceres-solver-rs"
 license = "MIT OR Apache-2.0"
-rust-version = "1.57.0"
+rust-version = "1.85.0"
 
 [build-dependencies]
 cmake = "0.1"
diff --git a/ceres-solver-sys/Cargo.toml b/ceres-solver-sys/Cargo.toml
index 098d018..0952e1e 100644
--- a/ceres-solver-sys/Cargo.toml
+++ b/ceres-solver-sys/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "ceres-solver-sys"
-version = "0.4.2"
-edition = "2021"
+version = "0.5.0"
+edition = "2024"
 readme = "README.md"
 description = "Unsafe Rust bindings for the Ceres Solver"
 repository = "https://github.com/light-curve/ceres-solver-rs"
 license = "MIT OR Apache-2.0"
-rust-version = "1.67.0"
+rust-version = "1.85.0"
 
 [features]
 system = ["pkg-config"]
@@ -15,17 +15,16 @@ source = ["ceres-solver-src"]
 default = ["system"]
 
 [dependencies.ceres-solver-src]
-version = "0.4.0"
+version = "0.5.0"
 path = "../ceres-solver-src"
 optional = true
 
 [dependencies.cxx]
-version = "1,<=1.0.129"  # 1.0.130 requires MSRV 1.70
+version = "1"
 features = ["c++17"]
 
 [build-dependencies]
-cmake = "0.1"
-cxx-build = "1,<=1.0.129"  # 1.0.130 requires MSRV 1.70
+cxx-build = "1"
 pkg-config = { version = "0.3", optional = true }
 
 [dev-dependencies]
diff --git a/src/solver.rs b/src/solver.rs
index 061ce4e..13f253f 100644
--- a/src/solver.rs
+++ b/src/solver.rs
@@ -3,7 +3,7 @@
 use crate::error::SolverOptionsBuildingError;
 use crate::residual_block::ResidualBlockId;
 
-use ceres_solver_sys::cxx::{let_cxx_string, UniquePtr};
+use ceres_solver_sys::cxx::{UniquePtr, let_cxx_string};
 use ceres_solver_sys::ffi;
 pub use ceres_solver_sys::ffi::{
     DenseLinearAlgebraLibraryType, DoglegType, DumpFormatType, LineSearchDirectionType,