diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0122f58..1c9e6ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,19 +10,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.86.0
       - run: cargo test
 
   check-macos:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.86.0
       - run: cargo check
 
   check-windows:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.86.0
       - run: cargo check
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f46ea54..ea6a475 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.86.0
       - run: cargo test
 
   publish:
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.86.0
       - name: Publish to crates.io
         run: cargo publish
         env:
diff --git a/Cargo.toml b/Cargo.toml
index 6dc985c..1164209 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "libfreemkv"
 version = "0.8.3"
 edition = "2021"
+rust-version = "1.86"
 license = "AGPL-3.0-only"
 description = "Open source raw disc access library for optical drives"
 repository = "https://github.com/freemkv/libfreemkv"