diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,11 @@
 # Revision history for boring-window-switcher
 
+## 0.1.0.5  -- 2018-03-15
+
+* Remove dependency upper bound for `hspec`,
+  because I think it's stable enough.
+
+
 ## 0.1.0.4  -- 2017-02-10
 
 * Confirmed test with `X11-1.8`.
diff --git a/boring-window-switcher.cabal b/boring-window-switcher.cabal
--- a/boring-window-switcher.cabal
+++ b/boring-window-switcher.cabal
@@ -1,5 +1,5 @@
 name:                   boring-window-switcher
-version:                0.1.0.4
+version:                0.1.0.5
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -53,7 +53,7 @@
   -- other-extensions:     
   other-modules:        Graphics.UI.BoringWindowSwitcher.Internal.ControlSpec
   build-depends:        base, boring-window-switcher,
-                        hspec >=2.1.7 && <2.5
+                        hspec >=2.1.7
 
 source-repository head
   type:                 git