diff --git a/lib/slanger/handler.rb b/lib/slanger/handler.rb
index 41c2c389..f294c34a 100644
--- a/lib/slanger/handler.rb
+++ b/lib/slanger/handler.rb
@@ -38,7 +38,7 @@ def onmessage(msg)
         send event, msg
       end
 
-    rescue Oj::ParserError
+    rescue JSON::ParserError
       error({ code: 5001, message: "Invalid JSON" })
     rescue Exception => e
       error({ code: 500, message: "#{e.message}\n #{e.backtrace.join "\n"}" })