diff --git a/hledger.cabal b/hledger.cabal
index 61cbd20c2..e86a7ee7e 100644
--- a/hledger.cabal
+++ b/hledger.cabal
@@ -112,6 +112,7 @@ executable hledger
                   io-storage >= 0.3 && < 0.4
                  ,yesod >= 0.4.0 && < 0.5
                  ,convertible-text >= 0.3.0.1
+                 ,data-object >= 0.3.1.2
 
   if flag(web610)
     cpp-options: -DWEB610