diff --git a/homeassistant/components/buienradar/util.py b/homeassistant/components/buienradar/util.py
index 3c50b3097cb..63e0004dc43 100644
--- a/homeassistant/components/buienradar/util.py
+++ b/homeassistant/components/buienradar/util.py
@@ -109,7 +109,7 @@ class BrData:
             return result
         finally:
             if resp is not None:
-                await resp.release()
+                resp.release()
 
     async def _async_update(self):
         """Update the data from buienradar."""
diff --git a/tests/test_util/aiohttp.py b/tests/test_util/aiohttp.py
index 5e7284eb9c2..356240dc37a 100644
--- a/tests/test_util/aiohttp.py
+++ b/tests/test_util/aiohttp.py
@@ -255,7 +255,7 @@ class AiohttpClientMockResponse:
         """Return mock response as a json."""
         return loads(self.response.decode(encoding))
 
-    async def release(self):
+    def release(self):
         """Mock release."""
 
     def raise_for_status(self):