diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8e1e858..dffb299 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [stable, nightly, '1.48']
+        rust: [stable, nightly, '1.56']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -24,12 +24,6 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      # Workaround link failures if XCode 14 is combined with Rust <= 1.53
-      - name: Downgrade to XCode 13
-        if: ${{ matrix.os == 'macos-latest' && matrix.rust == '1.48' }}
-        uses: maxim-lobanov/setup-xcode@v1
-        with:
-          xcode-version: '13'
       - name: Setup cache
         uses: Swatinem/rust-cache@v2
       - name: Test (no features)
diff --git a/Cargo.toml b/Cargo.toml
index fe407fe..6781479 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,13 +10,13 @@ documentation = "https://docs.rs/errno"
 repository = "https://github.com/lambda-fairy/rust-errno"
 description = "Cross-platform interface to the `errno` variable."
 categories = ["no-std", "os"]
-rust-version = "1.48"
+rust-version = "1.56"
 
 [target.'cfg(unix)'.dependencies]
 libc = { version = "0.2", default-features = false }
 
 [target.'cfg(windows)'.dependencies.windows-sys]
-version = "0.48"
+version = "0.52"
 features = [
   "Win32_Foundation",
   "Win32_System_Diagnostics_Debug",
diff --git a/README.md b/README.md
index 48def10..6a9a42c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # errno [![CI](https://github.com/lambda-fairy/rust-errno/actions/workflows/main.yml/badge.svg)](https://github.com/lambda-fairy/rust-errno/actions/workflows/main.yml) [![Cargo](https://img.shields.io/crates/v/errno.svg)](https://crates.io/crates/errno)
 
-Cross-platform interface to the [`errno`][errno] variable. Works on Rust 1.48 or newer.
+Cross-platform interface to the [`errno`][errno] variable. Works on Rust 1.56 or newer.
 
 Documentation is available at <https://docs.rs/errno>.
 
diff --git a/clippy.toml b/clippy.toml
index f691ea3..62ca742 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1 +1 @@
-msrv = "1.48"
+msrv = "1.56"