diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 14656c3..85a4e78 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
     name: Build
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
@@ -40,7 +40,7 @@ jobs:
     env:
       ACTIONS_STEP_DEBUG: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Cache the store
         uses: ./
 
@@ -53,7 +53,7 @@ jobs:
     env:
       ACTIONS_STEP_DEBUG: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
         with:
@@ -75,7 +75,7 @@ jobs:
     env:
       ACTIONS_STEP_DEBUG: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
         with:
@@ -98,7 +98,7 @@ jobs:
     env:
       ACTIONS_STEP_DEBUG: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main
         with:
diff --git a/.github/workflows/flakehub-cache.yml b/.github/workflows/flakehub-cache.yml
index c7969de..e88ad9c 100644
--- a/.github/workflows/flakehub-cache.yml
+++ b/.github/workflows/flakehub-cache.yml
@@ -22,7 +22,7 @@ jobs:
           - nix-system: "x86_64-linux"
             runner: "ubuntu-22.04"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
         with:
diff --git a/README.md b/README.md
index ac09c34..d3c5404 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ jobs:
       id-token: "write"
       contents: "read"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
       - uses: DeterminateSystems/flake-checker-action@main