2 files changed, 2 insertions, 2 deletions
diff --git a/matrix-specification/Events/PresenceEvent.php b/matrix-specification/Events/PresenceEvent.php
index c8c2023..7854444 100644
--- a/matrix-specification/Events/PresenceEvent.php
+++ b/matrix-specification/Events/PresenceEvent.php
@@ -25,7 +25,7 @@ class PresenceEvent extends SenderEvent
         "last_active_ago" => $lastActiveAgo,
         "presence" => $presence,
         "status_msg" => $statusMessage,
-      ], "is_null"),
+      ], fn ($value) => ! is_null($value)),
       $sender,
       EventType::PRESENCE
     );
diff --git a/matrix-specification/Events/UnsignedData.php b/matrix-specification/Events/UnsignedData.php
index 924af29..3c5cd46 100644
--- a/matrix-specification/Events/UnsignedData.php
+++ b/matrix-specification/Events/UnsignedData.php
@@ -26,6 +26,6 @@ class UnsignedData implements \JsonSerializable
       "prev_content" => $this->previousContent,
       "redacted_because" => $this->redactedBecause,
       "transaction_id" => $this->transactionId,
-    ], "is_null");
+    ], fn ($value) => ! is_null($value));
   }
 }