diff --git a/pyproject.toml b/pyproject.toml
index be5e8722..2a5cf14a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dev = [
     "isort>=5.13",
     "mypy>=1.8",
     "pre-commit>=3.6",
-    "pytest>=8.0",
+    "pytest>=9.1.0",
     "pytest-cov>=5.0",
     "pytest-mock>=3.12",
     "pytest-xdist>=3.0",
@@ -85,7 +85,7 @@ dev = [
     "isort>=5.13",
     "mypy>=1.8",
     "pre-commit>=3.6",
-    "pytest>=8.0",
+    "pytest>=9.1.0",
     "pytest-cov>=5.0",
     "pytest-mock>=3.12",
     "pytest-xdist>=3.0",  # Parallel testing
diff --git a/uv.lock b/uv.lock
index 0a11fbde..1499f19f 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1622,7 +1622,7 @@ requires-dist = [
     { name = "pre-commit", marker = "extra == 'dev'", specifier = ">=3.6" },
     { name = "pyqt5", marker = "extra == 'all'", specifier = ">=5.15" },
     { name = "pyqt5", marker = "extra == 'gui'", specifier = ">=5.15" },
-    { name = "pytest", marker = "extra == 'dev'", specifier = ">=8.0" },
+    { name = "pytest", marker = "extra == 'dev'", specifier = ">=9.1.0" },
     { name = "pytest-cov", marker = "extra == 'dev'", specifier = ">=5.0" },
     { name = "pytest-mock", marker = "extra == 'dev'", specifier = ">=3.12" },
     { name = "pytest-rerunfailures", marker = "extra == 'dev'", specifier = ">=13.0" },
@@ -1642,7 +1642,7 @@ dev = [
     { name = "isort", specifier = ">=5.13" },
     { name = "mypy", specifier = ">=1.8" },
     { name = "pre-commit", specifier = ">=3.6" },
-    { name = "pytest", specifier = ">=8.0" },
+    { name = "pytest", specifier = ">=9.1.0" },
     { name = "pytest-cov", specifier = ">=5.0" },
     { name = "pytest-mock", specifier = ">=3.12" },
     { name = "pytest-rerunfailures", specifier = ">=13.0" },
@@ -1730,7 +1730,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "9.0.3"
+version = "9.1.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -1741,9 +1741,9 @@ dependencies = [
     { name = "pygments" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/7d/0d/549bd94f1a0a402dc8cf64563a117c0f3765662e2e668477624baeec44d5/pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c", size = 1572165, upload-time = "2026-04-07T17:16:18.027Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/84/0e/b5858858d74958632c49b72cb25a3976ff9f632397626715be71c89d3971/pytest-9.1.0.tar.gz", hash = "sha256:41dd9148c08072446394cefd3d79701701335a9f4cae69ba92e39f6c7f5c061c", size = 1634181, upload-time = "2026-06-13T18:52:45.983Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
+    { url = "https://files.pythonhosted.org/packages/8b/5a/ba30a81239b909821b3153e303e7def45178bf353da4f72380e6c5e8793b/pytest-9.1.0-py3-none-any.whl", hash = "sha256:8ebb0e7888bdf2bdfc602ec51f8f62d50200af37356c74e503c79a94f5c81f32", size = 386453, upload-time = "2026-06-13T18:52:44.045Z" },
 ]
 
 [[package]]