diff --git a/dragonion_core/proto/web/webmessage/message.py b/dragonion_core/proto/web/webmessage/message.py
index 3d0b262..5025d80 100644
--- a/dragonion_core/proto/web/webmessage/message.py
+++ b/dragonion_core/proto/web/webmessage/message.py
@@ -40,7 +40,7 @@ class WebBroadcastableMessage:
 
     messages: dict[str, WebMessageMessage] = field(default_factory=dict)
     type: Final = "broadcastable"
-    time: datetime = None
+    time: datetime | None = None
 
 
 @dataclass
diff --git a/dragonion_core/proto/web/webmessage/webmessage.py b/dragonion_core/proto/web/webmessage/webmessage.py
index a4a84c9..ca2012f 100644
--- a/dragonion_core/proto/web/webmessage/webmessage.py
+++ b/dragonion_core/proto/web/webmessage/webmessage.py
@@ -53,7 +53,7 @@ class _WebAnyMessage:
     message: str | None = None
     messages: dict[str, WebMessageMessage] = None
     error_message: webmessage_error_message_literal | None = None
-    time: datetime = None
+    time: datetime | None = None
 
 
 webmessages_union = Union[