diff --git a/.github/workflows/CI-windows.yml b/.github/workflows/CI-windows.yml
index 56bf24998..39d769f1a 100644
--- a/.github/workflows/CI-windows.yml
+++ b/.github/workflows/CI-windows.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-2019, windows-2022]
-        qt_ver: [5.15.2, 6.2.4, 6.5.3]
+        qt_ver: [5.15.2, 6.6.0]
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/clang-tidy.yml b/.github/workflows/clang-tidy.yml
index 5d50459a0..59d409520 100644
--- a/.github/workflows/clang-tidy.yml
+++ b/.github/workflows/clang-tidy.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.5.3
+      QT_VERSION: 6.6.0
 
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/selfcheck.yml b/.github/workflows/selfcheck.yml
index efaceb367..912c17717 100644
--- a/.github/workflows/selfcheck.yml
+++ b/.github/workflows/selfcheck.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     env:
-      QT_VERSION: 6.5.3
+      QT_VERSION: 6.6.0
 
     steps:
       - uses: actions/checkout@v3