diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index 8a5ae2dde36..2863b53b684 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -3,7 +3,7 @@
 aiodiscover==1.6.0
 aiohttp-fast-url-dispatcher==0.3.0
 aiohttp-zlib-ng==0.3.1
-aiohttp==3.9.1
+aiohttp==3.9.3
 aiohttp_cors==0.7.0
 astral==2.2
 async-upnp-client==0.38.1
diff --git a/pyproject.toml b/pyproject.toml
index 535cac1292f..55299f5c2f5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 ]
 requires-python = ">=3.11.0"
 dependencies    = [
-    "aiohttp==3.9.1",
+    "aiohttp==3.9.3",
     "aiohttp_cors==0.7.0",
     "aiohttp-fast-url-dispatcher==0.3.0",
     "aiohttp-zlib-ng==0.3.1",
diff --git a/requirements.txt b/requirements.txt
index 75fd75f6177..f48dfe81935 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 -c homeassistant/package_constraints.txt
 
 # Home Assistant Core
-aiohttp==3.9.1
+aiohttp==3.9.3
 aiohttp_cors==0.7.0
 aiohttp-fast-url-dispatcher==0.3.0
 aiohttp-zlib-ng==0.3.1
diff --git a/tests/components/websocket_api/test_auth.py b/tests/components/websocket_api/test_auth.py
index 7c5a34a755a..65cf3012e30 100644
--- a/tests/components/websocket_api/test_auth.py
+++ b/tests/components/websocket_api/test_auth.py
@@ -220,7 +220,7 @@ async def test_auth_close_after_revoke(
     hass.auth.async_remove_refresh_token(refresh_token)
 
     msg = await websocket_client.receive()
-    assert msg.type == aiohttp.WSMsgType.CLOSE
+    assert msg.type == aiohttp.WSMsgType.CLOSED
     assert websocket_client.closed
 
 
diff --git a/tests/components/websocket_api/test_http.py b/tests/components/websocket_api/test_http.py
index e69b5629b63..f6723f0a592 100644
--- a/tests/components/websocket_api/test_http.py
+++ b/tests/components/websocket_api/test_http.py
@@ -42,7 +42,7 @@ async def test_pending_msg_overflow(
     for idx in range(10):
         await websocket_client.send_json({"id": idx + 1, "type": "ping"})
     msg = await websocket_client.receive()
-    assert msg.type == WSMsgType.close
+    assert msg.type == WSMsgType.CLOSED
 
 
 async def test_cleanup_on_cancellation(
@@ -248,7 +248,7 @@ async def test_pending_msg_peak(
     )
 
     msg = await websocket_client.receive()
-    assert msg.type == WSMsgType.close
+    assert msg.type == WSMsgType.CLOSED
     assert "Client unable to keep up with pending messages" in caplog.text
     assert "Stayed over 5 for 5 seconds" in caplog.text
     assert "overload" in caplog.text
@@ -296,7 +296,7 @@ async def test_pending_msg_peak_recovery(
     msg = await websocket_client.receive()
     assert msg.type == WSMsgType.TEXT
     msg = await websocket_client.receive()
-    assert msg.type == WSMsgType.close
+    assert msg.type == WSMsgType.CLOSED
     assert "Client unable to keep up with pending messages" not in caplog.text
 
 
diff --git a/tests/components/websocket_api/test_init.py b/tests/components/websocket_api/test_init.py
index 468b35fef51..c4c83925311 100644
--- a/tests/components/websocket_api/test_init.py
+++ b/tests/components/websocket_api/test_init.py
@@ -40,7 +40,7 @@ async def test_quiting_hass(hass: HomeAssistant, websocket_client) -> None:
 
     msg = await websocket_client.receive()
 
-    assert msg.type == WSMsgType.CLOSE
+    assert msg.type == WSMsgType.CLOSED
 
 
 async def test_unknown_command(websocket_client) -> None: