diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index 99d1e5bd22..0f98ddf7b2 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -54,7 +54,7 @@ jobs:
     - name: Install Qt
       uses: jurplel/install-qt-action@v3
       with:
-        version: '6.5.3'
+        version: '6.6.2'
         dir: ${{runner.workspace}}/Qt
         modules: 'qtwebengine qtpositioning qt5compat qtpdf qtwebchannel'
         setup-python: 'false'
diff --git a/.github/workflows/reset-lin-caches.txt b/.github/workflows/reset-lin-caches.txt
index d77b38dfd8..06e1c3e464 100644
--- a/.github/workflows/reset-lin-caches.txt
+++ b/.github/workflows/reset-lin-caches.txt
@@ -7,4 +7,4 @@ Cache cleared 8 August 2023
 Cache cleared 8 August 2023
 Cache cleared 8 August 2023
 Cache cleared 8 August 2023
-
+Cache cleared 19 February 2024
diff --git a/.github/workflows/reset-win-caches.txt b/.github/workflows/reset-win-caches.txt
index ac01e1c62a..91dacdd98c 100644
--- a/.github/workflows/reset-win-caches.txt
+++ b/.github/workflows/reset-win-caches.txt
@@ -6,3 +6,4 @@ Reset cache on 4-September-2023
 Reset cache on 9-Semptemeber-2023
 Reset cache on 7-October-2023
 Reset cache on 18-November-2023
+Reset cache for Qt6.6.2 on 19-Febbruary-2024
diff --git a/.github/workflows/win-build.yml b/.github/workflows/win-build.yml
index f2ee994143..da2f044a89 100644
--- a/.github/workflows/win-build.yml
+++ b/.github/workflows/win-build.yml
@@ -29,8 +29,8 @@ on:
 
 env:
   BUILD_TYPE: Release
-  DOWNLOADQT: https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/Qt6.5.3_x64_VS2022.7z
-  QT: Qt6.5.3
+  DOWNLOADQT: https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/Qt6.6.2_x64_VS2022.7z
+  QT: Qt6.6.2
   INNO: C:\Program Files (x86)\Inno Setup 6
   CMAKE64BIT: -DWIN_INSTALLER_USE_64BIT_CRT=1
   PYTHON: \hostedtoolcache\windows\Python\3.11.3\x64
@@ -78,8 +78,8 @@ jobs:
         pip install chardet==5.1.0
         pip install pillow==9.5.0
         pip install lxml==4.9.2
-        pip install shiboken6@https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/shiboken6-6.5.3-6.5.3-cp311-cp311-win_amd64.whl
-        pip install PySide6@https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/PySide6-6.5.3-6.5.3-cp311-cp311-win_amd64.whl
+        pip install shiboken6@https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/shiboken6-6.6.2-6.6.2-cp311-cp311-win_amd64.whl
+        pip install PySide6@https://github.com/dougmassay/win-qtwebkit-5.212/releases/download/v5.212-1/PySide6-6.6.2-6.6.2-cp311-cp311-win_amd64.whl
 
     - name: Create Build Environment
       shell: cmd