diff --git a/deploy/requirements.txt b/deploy/requirements.txt
index f9c2b3b..a4b1e61 100644
--- a/deploy/requirements.txt
+++ b/deploy/requirements.txt
@@ -669,6 +669,7 @@ ruff==0.15.12 \
     --hash=sha256:f86f176e188e94d6bdbc09f09bfd9dc729059ad93d0e7390b5a73efe19f8861c \
     --hash=sha256:fb129f40f114f089ebe0ca56c0d251cf2061b17651d464bb6478dc01e69f11f5 \
     --hash=sha256:fe87510d000220aa1ed530d4448a7c696a0cae1213e5ec30e5874287b66557b5
+    # via onlinejudge
 sentry-sdk==2.59.0 \
     --hash=sha256:abcf65ee9a9d9cdebf9ad369782408ecca9c1c792686ef06ba34f5ab233527fe \
     --hash=sha256:cd265808ef8bf3f3edf69b527c0a0b2b6b1322762679e55b8987db2e9584aec1
diff --git a/pyproject.toml b/pyproject.toml
index 1eab917..34f5fbe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,10 +30,6 @@ dependencies = [
     "xlsxwriter>=3.2.9,<4",
     "asgiref>=3.11.1",
     "jieba>=0.42.1",
-]
-
-[dependency-groups]
-dev = [
     "ruff>=0.15.11",
 ]
 
diff --git a/uv.lock b/uv.lock
index f5ab29f..c438255 100644
--- a/uv.lock
+++ b/uv.lock
@@ -575,6 +575,7 @@ dependencies = [
     { name = "psycopg-binary" },
     { name = "python-dateutil" },
     { name = "qrcode" },
+    { name = "ruff" },
     { name = "sentry-sdk", extra = ["django"] },
     { name = "tree-sitter" },
     { name = "tree-sitter-c" },
@@ -583,11 +584,6 @@ dependencies = [
     { name = "xlsxwriter" },
 ]
 
-[package.dev-dependencies]
-dev = [
-    { name = "ruff" },
-]
-
 [package.metadata]
 requires-dist = [
     { name = "asgiref", specifier = ">=3.11.1" },
@@ -609,6 +605,7 @@ requires-dist = [
     { name = "psycopg-binary", specifier = ">=3.3.4,<4" },
     { name = "python-dateutil", specifier = ">=2.9.0.post0,<3" },
     { name = "qrcode", specifier = ">=8.2,<9" },
+    { name = "ruff", specifier = ">=0.15.11" },
     { name = "sentry-sdk", extras = ["django"], specifier = ">=2.0.0,<3" },
     { name = "tree-sitter", specifier = ">=0.25.2" },
     { name = "tree-sitter-c", specifier = ">=0.24.2" },
@@ -617,9 +614,6 @@ requires-dist = [
     { name = "xlsxwriter", specifier = ">=3.2.9,<4" },
 ]
 
-[package.metadata.requires-dev]
-dev = [{ name = "ruff", specifier = ">=0.15.11" }]
-
 [[package]]
 name = "openai"
 version = "2.34.0"