diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 123a7fa..779aeb4 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -17,7 +17,7 @@ jobs:
           nightly
         ]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/cache@v4
         if: startsWith(matrix.rust, '1')
         with:
@@ -34,7 +34,7 @@ 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
@@ -44,7 +44,7 @@ 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
diff --git a/.github/workflows/master.yaml b/.github/workflows/master.yaml
index 6b7a4cb..68c4900 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: actions/cache@v4
         if: startsWith(matrix.rust, '1')
         with:
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 303e503..787f908 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: actions/cache@v4
         if: startsWith(matrix.rust, '1')
         with:
@@ -27,7 +27,7 @@ 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