diff --git a/pyproject.toml b/pyproject.toml
index 8eef2d9..9df25a7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ dev = [
     "pytest-homeassistant-custom-component==0.13.355",
     "bump-my-version>=1.5.1",
     "datamodel-code-generator>=0.72.2",
-    "diff-cover>=9.0.0",
+    "diff-cover>=10.5.0",
     "python-dotenv>=1.0.0",
     "ruff>=0.16.1",
     "ty>=0.0.69",
diff --git a/uv.lock b/uv.lock
index 749080c..97391c0 100644
--- a/uv.lock
+++ b/uv.lock
@@ -909,7 +909,7 @@ wheels = [
 
 [[package]]
 name = "diff-cover"
-version = "10.4.1"
+version = "10.5.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "chardet" },
@@ -917,9 +917,9 @@ dependencies = [
     { name = "pluggy" },
     { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/85/f9/9f49b333bd03e9bbc1bcc3cde14b4927239195f374cb88e8f4aee57550be/diff_cover-10.4.1.tar.gz", hash = "sha256:0ec566955c9ee7da2f6cc48fa16fac7f97ad1fc4e50a887ffb9cfe5eb1e831df", size = 108279, upload-time = "2026-07-24T03:58:08.376Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/35/c7/b2883d341261dfa1cdc4386929e967ff4af9c201405f6f72275abefd5f2a/diff_cover-10.5.0.tar.gz", hash = "sha256:a1734543baaaa7d0860a6526016d487be24a0ffe9efb4eca0824c391d4a09d06", size = 110762, upload-time = "2026-08-08T17:25:19.494Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/f5/71/bce893908031195b86a8222ac46ebf689c69b0ca10670c1893c56eb87d77/diff_cover-10.4.1-py3-none-any.whl", hash = "sha256:dc8f2654c485ec4f16e679b5af6e205783cde71185d4ceb8157662dca2d531e9", size = 59875, upload-time = "2026-07-24T03:58:07.163Z" },
+    { url = "https://files.pythonhosted.org/packages/63/c8/5345dfb7c955639454fffc767c3eaf9863d79a1cdb0081392a71102fedfa/diff_cover-10.5.0-py3-none-any.whl", hash = "sha256:5619f924e838b8f8c4c7b243b32a6068d8c449c1766c6f6a1110b152195ed9b9", size = 61184, upload-time = "2026-08-08T17:25:18.337Z" },
 ]
 
 [[package]]
@@ -1206,7 +1206,7 @@ requires-dist = [
 dev = [
     { name = "bump-my-version", specifier = ">=1.5.1" },
     { name = "datamodel-code-generator", specifier = ">=0.72.2" },
-    { name = "diff-cover", specifier = ">=9.0.0" },
+    { name = "diff-cover", specifier = ">=10.5.0" },
     { name = "pytest", specifier = ">=7.0.0" },
     { name = "pytest-asyncio", specifier = ">=0.20.0" },
     { name = "pytest-cov", specifier = ">=4.0.0" },