diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index a3309bc..114a979 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        rust: [1.63.0, stable, beta, nightly]
+        rust: [1.66.1, stable, beta, nightly]
 
     steps:
       - name: Checkout repository
diff --git a/Cargo.toml b/Cargo.toml
index 10dea67..447b788 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ description = "A modern replacement for ls"
 authors = ["Benjamin Sago <ogham@bsago.me>"]
 categories = ["command-line-utilities"]
 edition = "2021"
-rust-version = "1.63.0"
+rust-version = "1.66.1"
 exclude = ["/devtools/*", "/Justfile", "/Vagrantfile", "/screenshots.png"]
 readme = "README.md"
 homepage = "https://the.exa.website/"
diff --git a/README.md b/README.md
index 4bf682c..3020dd6 100644
--- a/README.md
+++ b/README.md
@@ -196,8 +196,8 @@ To build without Git support, run `cargo install --no-default-features exa` is a
 <a id="development">
 <h1>Development
 
-<a href="https://blog.rust-lang.org/2022/08/11/Rust-1.63.0.html">
-    <img src="https://img.shields.io/badge/rustc-1.63.0+-lightgray.svg" alt="Rust 1.63.0+" />
+<a href="https://blog.rust-lang.org/2023/01/10/Rust-1.66.1.html">
+    <img src="https://img.shields.io/badge/rustc-1.66.1+-lightgray.svg" alt="Rust 1.66.1+" />
 </a>
 
 <a href="https://github.com/ogham/exa/blob/master/LICENCE">
@@ -206,7 +206,7 @@ To build without Git support, run `cargo install --no-default-features exa` is a
 </h1></a>
 
 exa is written in [Rust](https://www.rust-lang.org/).
-You will need rustc version 1.56.1 or higher.
+You will need rustc version 1.66.1 or higher.
 The recommended way to install Rust for development is from the [official download page](https://www.rust-lang.org/tools/install), using rustup.
 
 Once Rust is installed, you can compile exa with Cargo:
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 6a423bf..f701aa5 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.63.0"
+channel = "1.66.1"