diff --git a/tests/plugins/param/param_depend.py b/tests/plugins/param/param_depend.py
index fc13c415..5e4c438b 100644
--- a/tests/plugins/param/param_depend.py
+++ b/tests/plugins/param/param_depend.py
@@ -1,5 +1,6 @@
+from dataclasses import dataclass
+
 from nonebot import on_message
-from nonebot.adapters import Event
 from nonebot.params import Depends
 
 test_depends = on_message()
@@ -17,6 +18,20 @@ def parameterless():
     runned.append(1)
 
 
+def gen_sync():
+    yield 1
+
+
+async def gen_async():
+    yield 2
+
+
+@dataclass
+class ClassDependency:
+    x: int = Depends(gen_sync)
+    y: int = Depends(gen_async)
+
+
 # test parameterless
 @test_depends.handle(parameterless=[Depends(parameterless)])
 async def depends(x: int = Depends(dependency)):
@@ -28,3 +43,7 @@ async def depends(x: int = Depends(dependency)):
 async def depends_cache(y: int = Depends(dependency, use_cache=True)):
     # test cache
     return y
+
+
+async def class_depend(c: ClassDependency = Depends()):
+    return c
diff --git a/tests/test_param.py b/tests/test_param.py
index 55725385..c338091e 100644
--- a/tests/test_param.py
+++ b/tests/test_param.py
@@ -8,7 +8,13 @@ from utils import load_plugin, make_fake_event, make_fake_message
 async def test_depend(app: App, load_plugin):
     from nonebot.params import DependParam
 
-    from plugins.param.param_depend import runned, depends, test_depends
+    from plugins.param.param_depend import (
+        ClassDependency,
+        runned,
+        depends,
+        class_depend,
+        test_depends,
+    )
 
     async with app.test_dependent(depends, allow_types=[DependParam]) as ctx:
         ctx.should_return(1)
@@ -24,6 +30,9 @@ async def test_depend(app: App, load_plugin):
 
     assert len(runned) == 2 and runned[0] == runned[1] == 1
 
+    async with app.test_dependent(class_depend, allow_types=[DependParam]) as ctx:
+        ctx.should_return(ClassDependency(x=1, y=2))
+
 
 @pytest.mark.asyncio
 async def test_bot(app: App, load_plugin):