diff --git a/.github/workflows/build-external-graphviz.yml b/.github/workflows/build-external-graphviz.yml
index 1d14cba3..3e6ae00f 100644
--- a/.github/workflows/build-external-graphviz.yml
+++ b/.github/workflows/build-external-graphviz.yml
@@ -27,7 +27,7 @@ jobs:
           - Shared
           - Static
         config:
-          - qt_version: 6.6.2
+          - qt_version: 6.9.3
             qt_modules: qtscxml qtremoteobjects
 
     steps:
diff --git a/.github/workflows/build-sanitizers.yml b/.github/workflows/build-sanitizers.yml
index a2472168..6e314de0 100644
--- a/.github/workflows/build-sanitizers.yml
+++ b/.github/workflows/build-sanitizers.yml
@@ -37,9 +37,13 @@ jobs:
       - name: Setup Sanitized Qt
         uses: KDABLabs/sanitized-qt-action@v1
         with:
-          qt-tag: "v6.11.0-beta2"
+          qt-tag: "v6.12.0-beta1"
           qt-flavor: ${{ matrix.qt-flavor }}
 
+      - name: Install dependencies
+        run: |
+          sudo apt install libwayland-dev wayland-protocols -y
+
       - name: Configure project
         run: >
           cmake --preset=${{ matrix.preset }}
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6467f0bb..f8da7970 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,13 +29,8 @@ jobs:
           - Shared
           - Static
         config:
-          - qt_version: 6.6.2
+          - qt_version: 6.9.3
             qt_modules: qtscxml qtremoteobjects
-            qt_arch: win64_msvc2019_64
-            macos_architectures: "x86_64;arm64"
-          - qt_version: 6.10.0 # Bump to latest freely
-            qt_modules: qtscxml qtremoteobjects
-            qt_arch: win64_msvc2022_64
             macos_architectures: "x86_64;arm64"
     steps:
       - name: Install Dependencies on Linux
@@ -49,22 +44,11 @@ jobs:
         run: brew install bison
 
       - name: Install Qt ${{ matrix.config.qt_version }} with options and default aqtversion (Linux/macOS)
-        if: ${{ runner.os != 'Windows' }}
-        uses: jurplel/install-qt-action@v4
-        with:
-          aqtversion: null # use whatever the default is
-          modules: ${{ matrix.config.qt_modules }}
-          version: ${{ matrix.config.qt_version }}
-          cache: true
-
-      - name: Install Qt with options and default aqtversion (Windows)
-        if: ${{ runner.os == 'Windows' }}
         uses: jurplel/install-qt-action@v4
         with:
           aqtversion: null # use whatever the default is
           modules: ${{ matrix.config.qt_modules }}
           version: ${{ matrix.config.qt_version }}
-          arch: ${{ matrix.config.qt_arch }}
           cache: true
 
       - name: Install ninja-build tool (must be after Qt due PATH changes)