diff --git a/app/models/spam_wave.rb b/app/models/spam_wave.rb
index b5729f7e..6b4134b1 100644
--- a/app/models/spam_wave.rb
+++ b/app/models/spam_wave.rb
@@ -124,7 +124,7 @@ def check_min_accuracy
   end
 
   def max_expiry
-    return if expiry <= 2.day.from_now
+    return if expiry <= 368.day.from_now
     errors.add(:expiry, 'must be no more than 48 hours from now')
   end
 end