diff --git a/yam-transaction.cabal b/yam-transaction.cabal
--- a/yam-transaction.cabal
+++ b/yam-transaction.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: e4ca05165e61fba8244e0de1ff8545778e51dc047824a8acde49d08c17ffcd87
+-- hash: 55a898afe139e7898846588eafb823c7cd3af91dd3fef6fe544384f41d793f88
 
 name:           yam-transaction
-version:        0.3.0
+version:        0.3.1
 synopsis:       Yam transaction
 description:    transaction module for yam
 category:       Project