diff --git a/pyproject.toml b/pyproject.toml
index 8cd1cba35..d036f1d63 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = [
     "psutil>=6.1.0,<8",
     "pypresence>=4.3.0,<5",
     "pillow (>=11.3.0,<13.0.0)",
-    "ttkbootstrap>=1.12.1,<1.20",
+    "ttkbootstrap>=1.12.1,<1.21",
 ]
 
 [tool.setuptools.packages.find]