diff --git a/tests/test_dependency_yield_scope_websockets.py b/tests/test_dependency_yield_scope_websockets.py
index c85648574..2bf9b19d4 100644
--- a/tests/test_dependency_yield_scope_websockets.py
+++ b/tests/test_dependency_yield_scope_websockets.py
@@ -1,3 +1,4 @@
+from contextvars import ContextVar
 from typing import Any, Dict, Tuple
 
 import pytest
@@ -6,7 +7,7 @@ from fastapi.exceptions import FastAPIError
 from fastapi.testclient import TestClient
 from typing_extensions import Annotated
 
-global_state: Dict[str, Any] = {}
+global_context: ContextVar[Dict[str, Any]] = ContextVar("global_context", default={})  # noqa: B039
 
 
 class Session:
@@ -18,6 +19,7 @@ def dep_session() -> Any:
     s = Session()
     yield s
     s.open = False
+    global_state = global_context.get()
     global_state["session_closed"] = True
 
 
@@ -37,6 +39,7 @@ def get_named_session(session: SessionRequestDep, session_b: SessionDefaultDep)
     named_session = NamedSession(name="named")
     yield named_session, session_b
     named_session.open = False
+    global_state = global_context.get()
     global_state["named_session_closed"] = True
 
 
@@ -47,6 +50,7 @@ def get_named_func_session(session: SessionFuncDep) -> Any:
     named_session = NamedSession(name="named")
     yield named_session, session
     named_session.open = False
+    global_state = global_context.get()
     global_state["named_func_session_closed"] = True
 
 
@@ -125,7 +129,8 @@ client = TestClient(app)
 
 
 def test_function_scope() -> None:
-    global_state["session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/function-scope") as websocket:
         data = websocket.receive_json()
     assert data["is_open"] is True
@@ -133,7 +138,8 @@ def test_function_scope() -> None:
 
 
 def test_request_scope() -> None:
-    global_state["session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/request-scope") as websocket:
         data = websocket.receive_json()
     assert data["is_open"] is True
@@ -141,7 +147,8 @@ def test_request_scope() -> None:
 
 
 def test_two_scopes() -> None:
-    global_state["session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/two-scopes") as websocket:
         data = websocket.receive_json()
     assert data["func_is_open"] is True
@@ -150,8 +157,8 @@ def test_two_scopes() -> None:
 
 
 def test_sub() -> None:
-    global_state["session_closed"] = False
-    global_state["named_session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/sub") as websocket:
         data = websocket.receive_json()
     assert data["named_session_open"] is True
@@ -174,8 +181,8 @@ def test_broken_scope() -> None:
 
 
 def test_named_function_scope() -> None:
-    global_state["session_closed"] = False
-    global_state["named_func_session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/named-function-scope") as websocket:
         data = websocket.receive_json()
     assert data["named_session_open"] is True
@@ -185,7 +192,8 @@ def test_named_function_scope() -> None:
 
 
 def test_regular_function_scope() -> None:
-    global_state["session_closed"] = False
+    global_context.set({})
+    global_state = global_context.get()
     with client.websocket_connect("/regular-function-scope") as websocket:
         data = websocket.receive_json()
     assert data["named_session_open"] is True