diff --git a/data/category-ai-!cn b/data/category-ai-!cn
index 57799299..4c16195c 100644
--- a/data/category-ai-!cn
+++ b/data/category-ai-!cn
@@ -32,6 +32,7 @@ jasper.ai
 
 agentclientprotocol.com
 anythingllm.com
+arena.ai
 chutes.ai
 clawhub.ai
 copilot.microsoft.com