diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1807fb3..6d4778a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ jobs:
           nightly,
         ]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
@@ -27,7 +27,7 @@ jobs:
     name: No Std
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           target: thumbv6m-none-eabi
@@ -37,7 +37,7 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v5
       - uses: dtolnay/rust-toolchain@1.62.0
         with:
           components: rustfmt
diff --git a/.github/workflows/master.yaml b/.github/workflows/master.yaml
index 98e8f8e..c284d89 100644
--- a/.github/workflows/master.yaml
+++ b/.github/workflows/master.yaml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         rust: [1.31.0, stable]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 8efffd7..e51f85d 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -11,7 +11,7 @@ jobs:
       matrix:
         rust: [1.31.0, stable]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
@@ -22,7 +22,7 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@1.62.0
         with:
           components: rustfmt