diff --git a/app/models/broadcast_message.rb b/app/models/broadcast_message.rb
index 0b5612039141a0386c7dcfb5be0cf9e14fd94990..4aa236555cb6e5c9a53a332092eca893e4e4a4d1 100644
--- a/app/models/broadcast_message.rb
+++ b/app/models/broadcast_message.rb
@@ -19,7 +19,7 @@ class BroadcastMessage < ActiveRecord::Base
   after_commit :flush_redis_cache
 
   def self.current
-    messages = Rails.cache.fetch(CACHE_KEY) { current_and_future_messages.to_a }
+    messages = Rails.cache.fetch(CACHE_KEY, expires_in: cache_expires_in) { current_and_future_messages.to_a }
 
     return messages if messages.empty?
 
@@ -36,6 +36,10 @@ class BroadcastMessage < ActiveRecord::Base
     where('ends_at > :now', now: Time.zone.now).order_id_asc
   end
 
+  def self.cache_expires_in
+    nil
+  end
+
   def active?
     started? && !ended?
   end
diff --git a/spec/models/broadcast_message_spec.rb b/spec/models/broadcast_message_spec.rb
index 461e754dc1fba5c0e7c07e31e31021efc41468cd..5326f9cb8c09a16efbe01b42edb43d471bc9fc18 100644
--- a/spec/models/broadcast_message_spec.rb
+++ b/spec/models/broadcast_message_spec.rb
@@ -51,7 +51,11 @@ describe BroadcastMessage do
 
       expect(described_class).to receive(:where).and_call_original.once
 
-      2.times { described_class.current }
+      described_class.current
+
+      Timecop.travel(1.year) do
+        described_class.current
+      end
     end
 
     it 'includes messages that need to be displayed in the future' do