diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 445a5ec..ebcfdc0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,7 +75,7 @@ jobs:
           command: update
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.65.0
+          toolchain: 1.66.0
           profile: minimal
           components: clippy
           default: true
@@ -88,12 +88,12 @@ jobs:
           path: |
             ~/.cargo/registry
             ~/.cargo/git
-          key: ${{ runner.os }}-cargo-rust_1.65.0-${{ hashFiles('**/Cargo.toml') }}
+          key: ${{ runner.os }}-cargo-rust_1.66.0-${{ hashFiles('**/Cargo.toml') }}
       - name: Build cache
         uses: actions/cache@v3
         with:
           path: target
-          key: ${{ runner.os }}-build-rust_1.65.0-check-${{ hashFiles('**/Cargo.toml') }}
+          key: ${{ runner.os }}-build-rust_1.66.0-check-${{ hashFiles('**/Cargo.toml') }}
       - name: Clippy
         uses: actions-rs/clippy-check@v1
         with:
diff --git a/Cargo.toml b/Cargo.toml
index 56dc0c8..77a15ae 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ version = "0.12.0"
 license = "MIT"
 authors = ["Tyler Slabinski <tslabinski@slabity.net>", "Victoria Brekenfeld <crates-io@drakulix.de>"]
 exclude = [".gitignore", ".github"]
-rust-version = "1.65"
+rust-version = "1.66"
 edition = "2021"
 
 [dependencies]
diff --git a/drm-ffi/Cargo.toml b/drm-ffi/Cargo.toml
index 8561e53..927a53a 100644
--- a/drm-ffi/Cargo.toml
+++ b/drm-ffi/Cargo.toml
@@ -5,7 +5,7 @@ repository = "https://github.com/Smithay/drm-rs"
 version = "0.8.0"
 license = "MIT"
 authors = ["Tyler Slabinski <tslabinski@slabity.net>"]
-rust-version = "1.65"
+rust-version = "1.66"
 edition = "2021"
 
 [dependencies]
diff --git a/drm-ffi/drm-sys/Cargo.toml b/drm-ffi/drm-sys/Cargo.toml
index e040b26..4e3b722 100644
--- a/drm-ffi/drm-sys/Cargo.toml
+++ b/drm-ffi/drm-sys/Cargo.toml
@@ -6,7 +6,7 @@ version = "0.7.0"
 authors = ["Tyler Slabinski <tslabinski@slabity.net>"]
 license = "MIT"
 build = "build.rs"
-rust-version = "1.65"
+rust-version = "1.66"
 edition = "2021"
 
 [features]