diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 1625755..22be475 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        toolchain: [ stable, 1.59.0, nightly ]
+        toolchain: [ stable, 1.73.0, nightly ]
       fail-fast: false
     env:
       RUSTFLAGS: -D warnings
diff --git a/README.md b/README.md
index e8463bd..fc7c047 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [crates.io]: https://crates.io/crates/nod
 [Api Rustdoc]: https://img.shields.io/badge/api-rustdoc-blue.svg
 [rustdoc]: https://docs.rs/nod
-[Rust Version]: https://img.shields.io/badge/rust-1.59+-blue.svg?maxAge=3600
+[Rust Version]: https://img.shields.io/badge/rust-1.73+-blue.svg?maxAge=3600
 
 Library for traversing & reading GameCube and Wii disc images.
 
diff --git a/nod/Cargo.toml b/nod/Cargo.toml
index b04dbab..65e8029 100644
--- a/nod/Cargo.toml
+++ b/nod/Cargo.toml
@@ -2,7 +2,7 @@
 name = "nod"
 version = "0.2.0"
 edition = "2021"
-rust-version = "1.59.0"
+rust-version = "1.73.0"
 authors = ["Luke Street <luke@street.dev>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/encounter/nod-rs"
diff --git a/nodtool/Cargo.toml b/nodtool/Cargo.toml
index 4e357ec..50c8d8c 100644
--- a/nodtool/Cargo.toml
+++ b/nodtool/Cargo.toml
@@ -2,7 +2,7 @@
 name = "nodtool"
 version = "0.2.0"
 edition = "2021"
-rust-version = "1.59.0"
+rust-version = "1.73.0"
 authors = ["Luke Street <luke@street.dev>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/encounter/nod-rs"