diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 1a88b04..724fa95 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: stable
@@ -37,11 +37,11 @@ jobs:
     name: Test Suite
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           # update `cargo-expand` accordingly, when bumping MSRV:
-          toolchain: 1.86.0
+          toolchain: 1.88.0
           components: rust-src
       - uses: cargo-bins/cargo-binstall@v1.15.5
       - run: cargo binstall cargo-expand@1.0.95 --no-confirm
@@ -51,7 +51,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: stable
@@ -62,7 +62,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: stable
@@ -73,7 +73,7 @@ jobs:
     name: Compile and test with minimal versions
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: nightly
@@ -91,7 +91,7 @@ jobs:
     name: Verify minimal supported rust version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: nightly
diff --git a/macros/src/lib.rs b/macros/src/lib.rs
index c40d4e3..93bf40f 100644
--- a/macros/src/lib.rs
+++ b/macros/src/lib.rs
@@ -396,7 +396,9 @@ pub fn derive_variant_discriminant(input: TokenStream) -> TokenStream {
 /// then you can do so by use of an `#[enumcapsulate(exclude(…))]` attribute
 /// on the enum itself, such as if you wanted to exclude `From` and `TryInto`:
 ///
-/// ```rust
+/// ```ignore
+/// use enumcapsulate::Encapsulate;
+///
 /// #[derive(Encapsulate)]
 /// #[enumcapsulate(exclude(From, TryInto))]
 /// enum Enum {