diff --git a/app/models/social_inbox.rb b/app/models/social_inbox.rb
index 45b8afd8..b0fde523 100644
--- a/app/models/social_inbox.rb
+++ b/app/models/social_inbox.rb
@@ -38,7 +38,7 @@ class SocialInbox
       public_key_url: public_key_url,
       private_key_pem: site.private_key_pem,
       logger: Rails.logger,
-      cache_store: :redis
+      cache_store: HTTParty::Cache::Store::Redis.new(redis_url: ENV['REDIS_SERVER'])
     )
   end