diff --git a/redbot/__init__.py b/redbot/__init__.py
index 340cbd4d5..a97aeb9cd 100644
--- a/redbot/__init__.py
+++ b/redbot/__init__.py
@@ -204,12 +204,3 @@ if "--debug" not in _sys.argv:
     # Individual warnings - tracked in https://github.com/Cog-Creators/Red-DiscordBot/issues/3529
     # DeprecationWarning: an integer is required (got type float).  Implicit conversion to integers using __int__ is deprecated, and may be removed in a future version of Python.
     _warnings.filterwarnings("ignore", category=DeprecationWarning, module="importlib", lineno=219)
-    # DeprecationWarning: "@coroutine" decorator is deprecated since Python 3.8, use "async def" instead
-    #   def noop(*args, **kwargs):  # type: ignore
-    _warnings.filterwarnings("ignore", category=DeprecationWarning, module="aiohttp", lineno=107)
-    # DeprecationWarning: The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10.
-    #   hosts = await asyncio.shield(self._resolve_host(..
-    _warnings.filterwarnings("ignore", category=DeprecationWarning, module="aiohttp", lineno=964)
-    # DeprecationWarning: The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10.
-    #   self._event = asyncio.Event(loop=loop)
-    _warnings.filterwarnings("ignore", category=DeprecationWarning, module="aiohttp", lineno=21)
diff --git a/redbot/core/commands/commands.py b/redbot/core/commands/commands.py
index b9660a8c7..5de209be3 100644
--- a/redbot/core/commands/commands.py
+++ b/redbot/core/commands/commands.py
@@ -485,15 +485,22 @@ class Command(CogCommandMixin, DPYCommand):
         if not await self.can_run(ctx, change_permission_state=True):
             raise CheckFailure(f"The check functions for command {self.qualified_name} failed.")
 
-        if self.cooldown_after_parsing:
-            await self._parse_arguments(ctx)
-            self._prepare_cooldowns(ctx)
-        else:
-            self._prepare_cooldowns(ctx)
-            await self._parse_arguments(ctx)
         if self._max_concurrency is not None:
             await self._max_concurrency.acquire(ctx)
-        await self.call_before_hooks(ctx)
+
+        try:
+            if self.cooldown_after_parsing:
+                await self._parse_arguments(ctx)
+                self._prepare_cooldowns(ctx)
+            else:
+                self._prepare_cooldowns(ctx)
+                await self._parse_arguments(ctx)
+
+            await self.call_before_hooks(ctx)
+        except:
+            if self._max_concurrency is not None:
+                await self._max_concurrency.release(ctx)
+            raise
 
     async def do_conversion(
         self, ctx: "Context", converter, argument: str, param: inspect.Parameter
diff --git a/redbot/core/commands/context.py b/redbot/core/commands/context.py
index a2dab2495..a5cd89302 100644
--- a/redbot/core/commands/context.py
+++ b/redbot/core/commands/context.py
@@ -188,7 +188,7 @@ class Context(DPYContext):
                 else:
                     try:
                         await self.channel.delete_messages((query, resp))
-                    except (discord.HTTPException, AttributeError):
+                    except discord.HTTPException:
                         # In case the bot can't delete other users' messages,
                         # or is not a bot account
                         # or channel is a DM
diff --git a/redbot/core/modlog.py b/redbot/core/modlog.py
index 51fdf8595..aeb8f79cd 100644
--- a/redbot/core/modlog.py
+++ b/redbot/core/modlog.py
@@ -546,15 +546,11 @@ class Case:
         if message is None:
             message_id = data.get("message")
             if message_id is not None:
-                try:
-                    message = discord.utils.get(bot.cached_messages, id=message_id)
-                except AttributeError:
-                    # bot.cached_messages didn't exist prior to discord.py 1.1.0
-                    message = None
+                message = discord.utils.get(bot.cached_messages, id=message_id)
                 if message is None:
                     try:
                         message = await mod_channel.fetch_message(message_id)
-                    except (discord.HTTPException, AttributeError):
+                    except discord.HTTPException:
                         message = None
             else:
                 message = None
diff --git a/setup.cfg b/setup.cfg
index b3568e619..4a966ef57 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -32,7 +32,7 @@ classifiers =
 packages = find_namespace:
 python_requires = >=3.8.1,<3.9
 install_requires =
-    aiohttp==3.6.2
+    aiohttp==3.7.3
     aiohttp-json-rpc==0.13.2
     aiosqlite==0.15.0
     appdirs==1.4.4
@@ -45,7 +45,7 @@ install_requires =
     colorama==0.4.3
     commonmark==0.9.1
     contextlib2==0.6.0.post1
-    discord.py==1.5.1
+    discord.py==1.6.0
     distro==1.5.0; sys_platform == "linux"
     fuzzywuzzy==0.18.0
     idna==2.10
@@ -56,7 +56,7 @@ install_requires =
     python-Levenshtein-wheels==0.13.1
     pytz==2020.1
     PyYAML==5.3.1
-    Red-Lavalink==0.7.1
+    Red-Lavalink==0.7.2
     rich==9.5.1
     schema==0.7.2
     six==1.15.0