diff --git a/hledger-irr.cabal b/hledger-irr.cabal
--- a/hledger-irr.cabal
+++ b/hledger-irr.cabal
@@ -1,5 +1,5 @@
 Name:                   hledger-irr
-Version:                0.1.1.10
+Version:                0.1.1.11
 Synopsis:               computes the internal rate of return of an investment
 License:                BSD3
 License-file:           LICENSE
@@ -64,11 +64,11 @@
  > 2011/04/01: €-50.00
  > 2011/05/01: €47.00
  > 2011/06/01: €90.00
- > 2011/01/01 - 2017/01/01: -100.00%
+ > 2011/01/01 - 2017/07/01: -100.00%
  > $ hledger-irr -f speculation.ledger -t "Rate Gain" -i Speculation -e 2011-03-01
  > 2011/01/01 - 2011/03/01: 26.12%
  > $ hledger-irr -f speculation.ledger -t "Rate Gain" -i Speculation -b 2011-03-01
- > 2011/03/01 - 2017/01/01: -100.00%
+ > 2011/03/01 - 2017/07/01: -100.00%
  > $ hledger-irr -f speculation.ledger -t "Rate Gain" -i Speculation --monthly
  > 2011/01/01 - 2011/02/01: 12.49%
  > 2011/02/01 - 2011/03/01: 41.55%
@@ -106,7 +106,7 @@
   Main-is:              Main.hs
   Build-depends:
     base >= 3 && < 5,
-    hledger-lib >= 1 && < 1.2,
+    hledger-lib >= 1 && < 1.4,
     Decimal,
     time,
     Cabal,