diff --git a/setup.dumbPaintTool.py b/setup.dumbPaintTool.py
index 87e43d24..aa6e19e2 100644
--- a/setup.dumbPaintTool.py
+++ b/setup.dumbPaintTool.py
@@ -43,7 +43,7 @@ setup(
     package_data={'dumbPaintTool': ['tui/*']},
     python_requires=">=3.9",
     install_requires=[
-        'pyTermTk>=0.39.0a149',
+        'pyTermTk>=0.40.0a1',
         'pyperclip',
         'Pillow'],
     entry_points={
diff --git a/setup.ttkDesigner.py b/setup.ttkDesigner.py
index b97aae58..2861e669 100644
--- a/setup.ttkDesigner.py
+++ b/setup.ttkDesigner.py
@@ -39,7 +39,7 @@ setup(
     package_data={'ttkDesigner': ['tui/*']},
     python_requires=">=3.9",
     install_requires=[
-        'pyTermTk>=0.39.0a149',
+        'pyTermTk>=0.40.0a1',
         'pyperclip',
         'Pillow'],
     entry_points={