diff --git a/pyproject.toml b/pyproject.toml
index 34d4aba..681e12e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dev = [
     "pytest-cov>=4.0.0",
     "pytest-homeassistant-custom-component==0.13.355",
     "bump-my-version>=1.1.0",
-    "diff-cover>=9.0.0",
+    "diff-cover>=10.4.1",
     "ruff>=0.14.10",
     "ty>=0.0.1a11",
 ]