diff --git a/pdm.lock b/pdm.lock
index 2697fff68..04e976440 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -5,7 +5,7 @@
 groups = ["default", "dev"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:7f8035cfb12eec0bca9053eb34cc6b70a1cfbf464921c1abb3ae3c3e63cfeab4"
+content_hash = "sha256:8dcb899b717280109d70077a4cc3195bfd2a89406e885b8baca012cb35deeae8"
 
 [[metadata.targets]]
 requires_python = "~=3.9"
@@ -801,29 +801,29 @@ files = [
 
 [[package]]
 name = "ruff"
-version = "0.8.4"
+version = "0.9.0"
 requires_python = ">=3.7"
 summary = "An extremely fast Python linter and code formatter, written in Rust."
 groups = ["default"]
 files = [
-    {file = "ruff-0.8.4-py3-none-linux_armv6l.whl", hash = "sha256:58072f0c06080276804c6a4e21a9045a706584a958e644353603d36ca1eb8a60"},
-    {file = "ruff-0.8.4-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:ffb60904651c00a1e0b8df594591770018a0f04587f7deeb3838344fe3adabac"},
-    {file = "ruff-0.8.4-py3-none-macosx_11_0_arm64.whl", hash = "sha256:6ddf5d654ac0d44389f6bf05cee4caeefc3132a64b58ea46738111d687352296"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:e248b1f0fa2749edd3350a2a342b67b43a2627434c059a063418e3d375cfe643"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:bf197b98ed86e417412ee3b6c893f44c8864f816451441483253d5ff22c0e81e"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:c41319b85faa3aadd4d30cb1cffdd9ac6b89704ff79f7664b853785b48eccdf3"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:9f8402b7c4f96463f135e936d9ab77b65711fcd5d72e5d67597b543bbb43cf3f"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:e4e56b3baa9c23d324ead112a4fdf20db9a3f8f29eeabff1355114dd96014604"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:736272574e97157f7edbbb43b1d046125fce9e7d8d583d5d65d0c9bf2c15addf"},
-    {file = "ruff-0.8.4-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e5fe710ab6061592521f902fca7ebcb9fabd27bc7c57c764298b1c1f15fff720"},
-    {file = "ruff-0.8.4-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:13e9ec6d6b55f6da412d59953d65d66e760d583dd3c1c72bf1f26435b5bfdbae"},
-    {file = "ruff-0.8.4-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:97d9aefef725348ad77d6db98b726cfdb075a40b936c7984088804dfd38268a7"},
-    {file = "ruff-0.8.4-py3-none-musllinux_1_2_i686.whl", hash = "sha256:ab78e33325a6f5374e04c2ab924a3367d69a0da36f8c9cb6b894a62017506111"},
-    {file = "ruff-0.8.4-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:8ef06f66f4a05c3ddbc9121a8b0cecccd92c5bf3dd43b5472ffe40b8ca10f0f8"},
-    {file = "ruff-0.8.4-py3-none-win32.whl", hash = "sha256:552fb6d861320958ca5e15f28b20a3d071aa83b93caee33a87b471f99a6c0835"},
-    {file = "ruff-0.8.4-py3-none-win_amd64.whl", hash = "sha256:f21a1143776f8656d7f364bd264a9d60f01b7f52243fbe90e7670c0dfe0cf65d"},
-    {file = "ruff-0.8.4-py3-none-win_arm64.whl", hash = "sha256:9183dd615d8df50defa8b1d9a074053891ba39025cf5ae88e8bcb52edcc4bf08"},
-    {file = "ruff-0.8.4.tar.gz", hash = "sha256:0d5f89f254836799af1615798caa5f80b7f935d7a670fad66c5007928e57ace8"},
+    {file = "ruff-0.9.0-py3-none-linux_armv6l.whl", hash = "sha256:949b3513f931741e006cf267bf89611edff04e1f012013424022add3ce78f319"},
+    {file = "ruff-0.9.0-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:99fbcb8c7fe94ae1e462ab2a1ef17cb20b25fb6438b9f198b1bcf5207a0a7916"},
+    {file = "ruff-0.9.0-py3-none-macosx_11_0_arm64.whl", hash = "sha256:0b022afd8eb0fcfce1e0adec84322abf4d6ce3cd285b3b99c4f17aae7decf749"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:336567ce92c9ca8ec62780d07b5fa11fbc881dc7bb40958f93a7d621e7ab4589"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:d338336c44bda602dc8e8766836ac0441e5b0dfeac3af1bd311a97ebaf087a75"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:d9b3ececf523d733e90b540e7afcc0494189e8999847f8855747acd5a9a8c45f"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_ppc64.manylinux2014_ppc64.whl", hash = "sha256:a11c0872a31232e473e2e0e2107f3d294dbadd2f83fb281c3eb1c22a24866924"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:b5fd06220c17a9cc0dc7fc6552f2ac4db74e8e8bff9c401d160ac59d00566f54"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:0457e775c74bf3976243f910805242b7dcd389e1d440deccbd1194ca17a5728c"},
+    {file = "ruff-0.9.0-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:05415599bbcb318f730ea1b46a39e4fbf71f6a63fdbfa1dda92efb55f19d7ecf"},
+    {file = "ruff-0.9.0-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:fbf9864b009e43cfc1c8bed1a6a4c529156913105780af4141ca4342148517f5"},
+    {file = "ruff-0.9.0-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:37b3da222b12e2bb2ce628e02586ab4846b1ed7f31f42a5a0683b213453b2d49"},
+    {file = "ruff-0.9.0-py3-none-musllinux_1_2_i686.whl", hash = "sha256:733c0fcf2eb0c90055100b4ed1af9c9d87305b901a8feb6a0451fa53ed88199d"},
+    {file = "ruff-0.9.0-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:8221a454bfe5ccdf8017512fd6bb60e6ec30f9ea252b8a80e5b73619f6c3cefd"},
+    {file = "ruff-0.9.0-py3-none-win32.whl", hash = "sha256:d345f2178afd192c7991ddee59155c58145e12ad81310b509bd2e25c5b0247b3"},
+    {file = "ruff-0.9.0-py3-none-win_amd64.whl", hash = "sha256:0cbc0905d94d21305872f7f8224e30f4bbcd532bc21b2225b2446d8fc7220d19"},
+    {file = "ruff-0.9.0-py3-none-win_arm64.whl", hash = "sha256:7b1148771c6ca88f820d761350a053a5794bc58e0867739ea93eb5e41ad978cd"},
+    {file = "ruff-0.9.0.tar.gz", hash = "sha256:143f68fa5560ecf10fc49878b73cee3eab98b777fcf43b0e62d43d42f5ef9d8b"},
 ]
 
 [[package]]
diff --git a/pyproject.toml b/pyproject.toml
index 4966e5f55..1d26441b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
     "python-dateutil>=2.8.1,<3.0.0",
     "httpx>=0.20.0,<0.29.0",
     "ruamel.yaml>=0.18.6,<0.19.0",
-    "ruff>=0.2,<0.9",
+    "ruff>=0.2,<0.10",
     "typing-extensions>=4.8.0,<5.0.0",
 ]
 name = "openapi-python-client"