diff --git a/.github/workflows/c-tests.yml b/.github/workflows/c-tests.yml
index 1d5a8052..e0a09818 100644
--- a/.github/workflows/c-tests.yml
+++ b/.github/workflows/c-tests.yml
@@ -23,7 +23,7 @@ jobs:
           - windows-latest
     steps:
       # Checkout repository and blst submodule.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: recursive
 
@@ -78,7 +78,7 @@ jobs:
       # Didn't generate it for Windows.
       - name: Save coverage report
         if: matrix.os != 'windows-latest'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: coverage
           path: src/coverage.html
diff --git a/.github/workflows/csharp-tests.yml b/.github/workflows/csharp-tests.yml
index 3775f4eb..b53a6269 100644
--- a/.github/workflows/csharp-tests.yml
+++ b/.github/workflows/csharp-tests.yml
@@ -47,7 +47,7 @@ jobs:
             reqs:
     steps:
     - uses: ilammy/msvc-dev-cmd@v1
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
     - name: Install requirements
@@ -56,7 +56,7 @@ jobs:
     - name: Build native library for ${{ matrix.target.location }} using native capabilities
       run: make ckzg -C bindings/csharp CC=clang EXTENSION=${{matrix.target.ext}} LOCATION=${{matrix.target.location}} ARCH=${{matrix.target.arch}}
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ckzg-library-wrapper-${{ matrix.target.location }}
         path: bindings/csharp/Ckzg.Bindings/runtimes/${{ matrix.target.location }}/native
@@ -75,14 +75,14 @@ jobs:
           - host: windows-latest
             location: win-x64
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
     - name: Set up .NET
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
     - name: Install dependencies
       run: cd bindings/csharp && dotnet restore
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-${{ matrix.target.location }}
         path: bindings/csharp/Ckzg.Bindings/runtimes/${{ matrix.target.location }}/native
@@ -94,35 +94,35 @@ jobs:
     runs-on: ubuntu-latest
     needs: test-ckzg-dotnet
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/download-artifact@v3
+    - uses: actions/checkout@v4
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-linux-x64
         path: bindings/csharp/Ckzg.Bindings/runtimes/linux-x64/native
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-osx-x64
         path: bindings/csharp/Ckzg.Bindings/runtimes/osx-x64/native
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-win-x64
         path: bindings/csharp/Ckzg.Bindings/runtimes/win-x64/native
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-osx-arm64
         path: bindings/csharp/Ckzg.Bindings/runtimes/osx-arm64/native
-    - uses: actions/download-artifact@v3
+    - uses: actions/download-artifact@v4
       with:
         name: ckzg-library-wrapper-linux-arm64
         path: bindings/csharp/Ckzg.Bindings/runtimes/linux-arm64/native
     - name: Set up .NET
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
     - name: Install dependencies
       run: cd bindings/csharp && dotnet restore
     - name: Build
       run: cd bindings/csharp && dotnet pack -c release --no-restore -o nupkgs -p:Version=${{ inputs.version || env.binding_build_number_based_version }} -p:ContinuousIntegrationBuild=true
     - name: Upload package
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: Ckzg.Bindings-${{ inputs.version || env.binding_build_number_based_version }}
         path: bindings/csharp/nupkgs/Ckzg.Bindings.*.nupkg
diff --git a/.github/workflows/python-release.yml b/.github/workflows/python-release.yml
index 93de4eaa..f34bf7e8 100644
--- a/.github/workflows/python-release.yml
+++ b/.github/workflows/python-release.yml
@@ -97,7 +97,7 @@ jobs:
         run: python setup.py sdist
 
       - name: Store artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: dist/*.tar.gz
           name: wheels