diff --git a/.github/workflows/fuzzing.yml b/.github/workflows/fuzzing.yml
index 019ad14..b597cfe 100644
--- a/.github/workflows/fuzzing.yml
+++ b/.github/workflows/fuzzing.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust nightly
         uses: actions-rs/toolchain@v1
         with:
diff --git a/.github/workflows/libraries.yml b/.github/workflows/libraries.yml
index 7cc9d28..bf7cee7 100644
--- a/.github/workflows/libraries.yml
+++ b/.github/workflows/libraries.yml
@@ -14,7 +14,7 @@ jobs:
   doc:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust nightly
         uses: actions-rs/toolchain@v1
         with:
@@ -29,7 +29,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust nightly
         uses: actions-rs/toolchain@v1
         with:
diff --git a/.github/workflows/prebuild.yml b/.github/workflows/prebuild.yml
index e7c54e9..0f6d72a 100644
--- a/.github/workflows/prebuild.yml
+++ b/.github/workflows/prebuild.yml
@@ -14,7 +14,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust nightly
         uses: actions-rs/toolchain@v1
         with:
@@ -36,7 +36,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust nightly
         uses: actions-rs/toolchain@v1
         with:
diff --git a/.github/workflows/program.yml b/.github/workflows/program.yml
index b92cf53..96f7a25 100644
--- a/.github/workflows/program.yml
+++ b/.github/workflows/program.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # Install Cachix
       - uses: cachix/install-nix-action@v22
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
           node-version: "14"
@@ -127,7 +127,7 @@ jobs:
   ##   runs-on: ubuntu-latest
 
   ##   steps:
-  ##     - uses: actions/checkout@v3
+  ##     - uses: actions/checkout@v4
   ##     # Install Rust
   ##     - name: Install Rust
   ##       uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8857ded..7b25ca9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Release crate on crates.io
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v22
       - name: Setup Cachix
         uses: cachix/cachix-action@v12
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Release verifiable binaries
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v22
       - name: Setup Cachix
         uses: cachix/cachix-action@v12