diff --git a/.github/workflows/linux-ci.yml b/.github/workflows/linux-ci.yml
index 419831ca..af22fd9f 100644
--- a/.github/workflows/linux-ci.yml
+++ b/.github/workflows/linux-ci.yml
@@ -13,7 +13,7 @@ jobs:
           - { cc: "clang", cxx: "clang++" }
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install dependencies
       run: sudo apt-get update && sudo apt-get install -y -q libsdl2-dev libaudiofile-dev dpkg-dev
diff --git a/.github/workflows/linux-deb.yml b/.github/workflows/linux-deb.yml
index 2f5ce314..d2dc61ee 100644
--- a/.github/workflows/linux-deb.yml
+++ b/.github/workflows/linux-deb.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install dependencies
       run: sudo apt-get update && sudo apt-get install -y -q libsdl2-dev libaudiofile-dev dpkg-dev
@@ -15,12 +15,12 @@ jobs:
     - name: Build DEB package
       run: ./package/make_linux_release.sh
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: simcoupe-deb
         path: build-linux/_packages/*.deb
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: simcoupe-tar
         path: build-linux/*.tar.gz
diff --git a/.github/workflows/macos-ci.yml b/.github/workflows/macos-ci.yml
index 54944d1f..ea8018f2 100644
--- a/.github/workflows/macos-ci.yml
+++ b/.github/workflows/macos-ci.yml
@@ -8,10 +8,10 @@ jobs:
 
     strategy:
       matrix:
-        os: [ macos-latest, macos-11 ]
+        os: [ macos-latest, macos-12 ]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install SDL2
       run: |
diff --git a/.github/workflows/macos-dmg.yml b/.github/workflows/macos-dmg.yml
index 93978b0a..4ef33ce1 100644
--- a/.github/workflows/macos-dmg.yml
+++ b/.github/workflows/macos-dmg.yml
@@ -4,10 +4,10 @@ on: [push]
 
 jobs:
   build:
-    runs-on: macos-11
+    runs-on: macos-12
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install SDL2
       run: |
@@ -15,12 +15,12 @@ jobs:
         hdiutil attach SDL2-${SDL_VERSION}.dmg
         sudo cp -r /Volumes/SDL2/SDL2.framework /Library/Frameworks/
       env:
-        SDL_VERSION: "2.28.5"
+        SDL_VERSION: "2.30.5"
 
     - name: Build DMG image
       run: ./package/make_macos_release.sh
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: simcoupe-dmg
         path: build-macos/*.dmg
diff --git a/.github/workflows/windows-ci.yml b/.github/workflows/windows-ci.yml
index 04b9d325..02c6d83c 100644
--- a/.github/workflows/windows-ci.yml
+++ b/.github/workflows/windows-ci.yml
@@ -13,7 +13,7 @@ jobs:
           - { vs: "17 2022", arch: "x64", triplet: "x64-windows" }
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Visual Studio shell
       uses: egor-tensin/vs-shell@v2
diff --git a/.github/workflows/windows-zip.yml b/.github/workflows/windows-zip.yml
index c292fcfb..ab1acc6f 100644
--- a/.github/workflows/windows-zip.yml
+++ b/.github/workflows/windows-zip.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: windows-2022
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install x86 dependencies
       shell: cmd
@@ -21,12 +21,12 @@ jobs:
       shell: powershell
       run: .\package\make_windows_release.ps1
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: simcoupe-zip
         path: SimCoupe-*-win_*.zip
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: simcoupe-exe
         path: SimCoupe-*-win.exe