diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index f033dc5..73dbbd8 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -12,7 +12,7 @@ jobs:
         toolchain:
           - stable
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
       - run: cargo build --verbose
       - run: cargo test --verbose
diff --git a/.github/workflows/clippy.yml b/.github/workflows/clippy.yml
index bde0511..459ade1 100644
--- a/.github/workflows/clippy.yml
+++ b/.github/workflows/clippy.yml
@@ -10,7 +10,7 @@ jobs:
     env:
       RUSTFLAGS: "-D warnings"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: thumbv6m-none-eabi
diff --git a/.github/workflows/rustfmt.yml b/.github/workflows/rustfmt.yml
index ac2b110..dd1e3d9 100644
--- a/.github/workflows/rustfmt.yml
+++ b/.github/workflows/rustfmt.yml
@@ -10,7 +10,7 @@ jobs:
     env:
       RUSTFLAGS: "-D warnings"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: thumbv6m-none-eabi