diff --git a/.github/workflows/aucpace.yml b/.github/workflows/aucpace.yml
index b82352f..c14532b 100644
--- a/.github/workflows/aucpace.yml
+++ b/.github/workflows/aucpace.yml
@@ -30,7 +30,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
@@ -45,7 +45,7 @@ jobs:
           - 1.61 # MSRV
           - stable
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
index 9366728..4e3d1f4 100644
--- a/.github/workflows/security-audit.yml
+++ b/.github/workflows/security-audit.yml
@@ -13,7 +13,7 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Cache cargo bin
         uses: actions/cache@v3
         with:
diff --git a/.github/workflows/spake2.yml b/.github/workflows/spake2.yml
index 19f4c75..ad5db38 100644
--- a/.github/workflows/spake2.yml
+++ b/.github/workflows/spake2.yml
@@ -28,7 +28,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
@@ -43,7 +43,7 @@ jobs:
           - 1.60.0 # MSRV
           - stable
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
diff --git a/.github/workflows/srp.yml b/.github/workflows/srp.yml
index ce963f9..6a27fbd 100644
--- a/.github/workflows/srp.yml
+++ b/.github/workflows/srp.yml
@@ -27,7 +27,7 @@ jobs:
           - 1.61 # MSRV
           - stable
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
diff --git a/.github/workflows/workspace.yml b/.github/workflows/workspace.yml
index b78a978..d7f3e0e 100644
--- a/.github/workflows/workspace.yml
+++ b/.github/workflows/workspace.yml
@@ -14,7 +14,7 @@ jobs:
   clippy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable
@@ -24,7 +24,7 @@ jobs:
   rustfmt:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: stable