diff --git a/revolt/channel.py b/revolt/channel.py
index 2e34d1e..dd79b89 100755
--- a/revolt/channel.py
+++ b/revolt/channel.py
@@ -182,13 +182,13 @@ class GroupDMChannel(Channel, Messageable, EditableChannel):
         self.permissions = Permissions(data.get("permissions", 0))
 
     def _update(self, *, name: Optional[str] = None, recipients: Optional[list[str]] = None, description: Optional[str] = None):
-        if name:
+        if name is not None:
             self.name = name
 
-        if recipients:
+        if recipients is not None:
             self.recipients = [self.state.get_user(user_id) for user_id in recipients]
 
-        if description:
+        if description is not None:
             self.description = description
 
     async def set_default_permissions(self, permissions: Permissions) -> None:
@@ -280,7 +280,7 @@ class ServerChannel(Channel):
         if description is not None:
             self.description = description
 
-        if icon:
+        if icon is not None:
             self.icon = Asset(icon, self.state)
 
         if nsfw is not None:
diff --git a/revolt/member.py b/revolt/member.py
index 3e9b0e0..f4af55e 100755
--- a/revolt/member.py
+++ b/revolt/member.py
@@ -75,10 +75,10 @@ class Member(User):
         return f"<@{self.id}>"
 
     def _update(self, *, nickname: Optional[str] = None, avatar: Optional[File] = None, roles: Optional[list[str]] = None):
-        if nickname:
+        if nickname is not None:
             self.nickname = nickname
 
-        if avatar:
+        if avatar is not None:
             self.guild_avatar = Asset(avatar, self.state)
 
         if roles is not None:
diff --git a/revolt/message.py b/revolt/message.py
index bb50a75..a8e8762 100755
--- a/revolt/message.py
+++ b/revolt/message.py
@@ -116,12 +116,12 @@ class Message(Ulid):
             self.interactions = None
 
     def _update(self, *, content: Optional[str] = None, embeds: Optional[list[EmbedPayload]] = None, edited: int):
-        if content:
+        if content is not None:
             self.content = content
 
         self.edited = datetime.datetime.fromtimestamp(edited / 1000)
 
-        if embeds:
+        if embeds is not None:
             self.embeds = [to_embed(embed, self.state) for embed in embeds]
 
     async def edit(self, *, content: Optional[str] = None, embeds: Optional[list[SendableEmbed]] = None) -> None:
diff --git a/revolt/role.py b/revolt/role.py
index b36fce5..d44a84d 100755
--- a/revolt/role.py
+++ b/revolt/role.py
@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING, Any, Optional
 
-from .permissions import PermissionsOverwrite
+from .permissions import PermissionsOverwrite, Overwrite
 from .utils import Missing, Ulid
 
 if TYPE_CHECKING:
@@ -63,19 +63,22 @@ class Role(Ulid):
         allow, deny = permissions.to_pair()
         await self.state.http.set_server_role_permissions(self.server.id, self.id, allow.value, deny.value)
 
-    def _update(self, *, name: Optional[str] = None, colour: Optional[str] = None, hoist: Optional[bool] = None, rank: Optional[int] = None):
-        if name:
+    def _update(self, *, name: Optional[str] = None, colour: Optional[str] = None, hoist: Optional[bool] = None, rank: Optional[int] = None, permissions: Optional[Overwrite] = None):
+        if name is not None:
             self.name = name
 
-        if colour:
+        if colour is not None:
             self.colour = colour
 
-        if hoist:
+        if hoist is not None:
             self.hoist = hoist
 
-        if rank:
+        if rank is not None:
             self.rank = rank
 
+        if permissions is not None:
+            self.permissions = PermissionsOverwrite._from_overwrite(permissions)
+
     async def delete(self):
         """Deletes the role"""
         await self.state.http.delete_role(self.server.id, self.id)
diff --git a/revolt/server.py b/revolt/server.py
index 2cc1b5d..d37db5b 100755
--- a/revolt/server.py
+++ b/revolt/server.py
@@ -130,15 +130,15 @@ class Server(Ulid):
         self._emojis: dict[str, Emoji] = {}
 
     def _update(self, *, owner: Optional[str] = None, name: Optional[str] = None, description: Optional[str] = None, icon: Optional[FilePayload] = None, banner: Optional[FilePayload] = None, default_permissions: Optional[int] = None, nsfw: Optional[bool] = None, system_messages: Optional[SystemMessagesConfig] = None, categories: Optional[list[CategoryPayload]] = None, channels: Optional[list[str]] = None):
-        if owner:
+        if owner is not None:
             self.owner_id = owner
-        if name:
+        if name is not None:
             self.name = name
         if description is not None:
             self.description = description or None
-        if icon:
+        if icon is not None:
             self.icon = Asset(icon, self.state)
-        if banner:
+        if banner is not None:
             self.banner = Asset(banner, self.state)
         if default_permissions is not None:
             self.default_permissions = Permissions(default_permissions)
diff --git a/revolt/user.py b/revolt/user.py
index 447257f..2c1ae08 100755
--- a/revolt/user.py
+++ b/revolt/user.py
@@ -153,7 +153,7 @@ class User(Messageable, Ulid):
 
             self.profile = UserProfile(profile.get("content"), background)
 
-        if avatar:
+        if avatar is not None:
             self.original_avatar = Asset(avatar, self.state)
 
         if online is not None: