diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5484ebbc..90474579 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,7 +50,7 @@ jobs:
 
       - name: Install Qt ${{ matrix.config.qt_version }} with options and default aqtversion (Linux/macOS)
         if: ${{ runner.os != 'Windows' }}
-        uses: jurplel/install-qt-action@v3
+        uses: jurplel/install-qt-action@v4
         with:
           aqtversion: null # use whatever the default is
           modules: ${{ matrix.config.qt_modules }}
@@ -59,7 +59,7 @@ jobs:
 
       - name: Install Qt with options and default aqtversion (Windows)
         if: ${{ runner.os == 'Windows' }}
-        uses: jurplel/install-qt-action@v3
+        uses: jurplel/install-qt-action@v4
         with:
           aqtversion: null # use whatever the default is
           modules: ${{ matrix.config.qt_modules }}
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 66bd35f2..d01522f7 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -32,10 +32,10 @@ jobs:
           sudo apt install -y doxygen
 
       - name: Install Qt
-        uses: jurplel/install-qt-action@v3
+        uses: jurplel/install-qt-action@v4
         with:
           aqtversion: null # use whatever the default is
-          version: 5.15.2
+          version: 6.6.2
           cache: true
 
       - name: Checkout sources