diff --git a/aiovk/drivers.py b/aiovk/drivers.py
index 8860d4a..b8edaa8 100644
--- a/aiovk/drivers.py
+++ b/aiovk/drivers.py
@@ -61,7 +61,7 @@ async def post_text(self, url, data, timeout=None):
         '''
         raise NotImplementedError
 
-    def close(self):
+    async def close(self):
         raise NotImplementedError
 
 
@@ -91,8 +91,8 @@ async def post_text(self, url, data, timeout=None):
         async with self.session.post(url, data=data, timeout=timeout or self.timeout) as response:
             return response.url, await response.text()
 
-    def close(self):
-        self.session.close()
+    async def close(self):
+        await self.session.close()
 
 
 if ProxyConnector is not None:
diff --git a/aiovk/mixins.py b/aiovk/mixins.py
index c2cbd1c..2952590 100644
--- a/aiovk/mixins.py
+++ b/aiovk/mixins.py
@@ -25,8 +25,8 @@ async def get_bin(self, *args, **kwargs):
     async def post_text(self, *args, **kwargs):
         return await super().post_text(*args, **kwargs)
 
-    def close(self):
-        super().close()
+    async def close(self):
+        await super().close()
         self._queue.canel()
 
 
diff --git a/aiovk/sessions.py b/aiovk/sessions.py
index 969baf2..fa6984d 100644
--- a/aiovk/sessions.py
+++ b/aiovk/sessions.py
@@ -18,9 +18,9 @@ async def __aenter__(self):
 
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         """Closes session after usage of context manager with Session"""
-        self.close()
+        await self.close()
 
-    def close(self) -> None:
+    async def close(self) -> None:
         """Perform the actions associated with the completion of the current session"""
 
     @abstractmethod
diff --git a/requirements-dev.txt b/requirements-dev.txt
index b4c3a64..4ca757e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
 aio.testing==0.1.0
-aiounittest-1.1.0
+aiounittest==1.1.0
 pyotp==2.2.6