diff --git a/.github/workflows/generate-windows-packages-debug.yml b/.github/workflows/generate-windows-packages-debug.yml
index c60235b3b..563548e17 100644
--- a/.github/workflows/generate-windows-packages-debug.yml
+++ b/.github/workflows/generate-windows-packages-debug.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v7
       with:
-        python-version: '3.13'
+        python-version: '3.14'
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/generate-windows-packages.yml b/.github/workflows/generate-windows-packages.yml
index 90822f433..c37eb1aa9 100644
--- a/.github/workflows/generate-windows-packages.yml
+++ b/.github/workflows/generate-windows-packages.yml
@@ -19,7 +19,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v7
       with:
-        python-version: '3.13'
+        python-version: '3.14'
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/simple-program-windows.yml b/.github/workflows/simple-program-windows.yml
index ef5d9eacb..5480e5405 100644
--- a/.github/workflows/simple-program-windows.yml
+++ b/.github/workflows/simple-program-windows.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 
     steps:
     - uses: actions/checkout@v7
diff --git a/.github/workflows/system-monitor-windows.yml b/.github/workflows/system-monitor-windows.yml
index 2785b8169..46f2e7839 100644
--- a/.github/workflows/system-monitor-windows.yml
+++ b/.github/workflows/system-monitor-windows.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
         theme: [ "3.5inchTheme2" ]
 
     steps:
diff --git a/library/pythoncheck.py b/library/pythoncheck.py
index a820738e0..453839971 100644
--- a/library/pythoncheck.py
+++ b/library/pythoncheck.py
@@ -24,10 +24,7 @@
 
 # Oldest / newest version supported
 MIN_PYTHON = (3, 9)
-# For Windows: max Python 3.13 until PythonNet support for 3.14
-MAX_PYTHON_WINDOWS = (3, 13)
-MAX_PYTHON_OTHERS = (3, 14)
-MAX_PYTHON = MAX_PYTHON_WINDOWS if sys.platform == "win32" else MAX_PYTHON_OTHERS
+MAX_PYTHON = (3, 14)
 
 
 def check_python_version():
diff --git a/requirements.txt b/requirements.txt
index 25b56896f..263879338 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,5 +39,6 @@ pyamdgpuinfo~=2.1.6; sys_platform=="linux" and python_version <= "3.12"
 pyadl~=0.1; sys_platform=="win32"
 
 # Following packages are for LibreHardwareMonitor integration on Windows
-pythonnet~=3.0.5; sys_platform=="win32"
+pythonnet~=3.0.5; sys_platform=="win32" and python_version < "3.10"   # For Python 3.9, only pythonnet 3.0.x is supported
+pythonnet~=3.1.0; sys_platform=="win32" and python_version >= "3.10"  # For Python 3.10+, pythonnet 3.1.x adds Python 3.14 support
 pywin32>=312; sys_platform=="win32"