diff --git a/spec/advisory_example.rb b/spec/advisory_example.rb
index b160580f74..ff24bd6805 100644
--- a/spec/advisory_example.rb
+++ b/spec/advisory_example.rb
@@ -139,6 +139,10 @@
       subject { advisory['date'] }
 
       it { expect(subject).to be_kind_of(Date) }
+
+      it "has no dates in the future" do
+        expect(subject).to be <= Date.today
+      end
     end
 
     describe "description" do