diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # Revision history for stopwatch
 
+## 0.1.0.2 -- 2016-05-22
+
+* Dependency version range for `base` was too wide.
+
+
 ## 0.1.0.1 -- 2016-05-03
 
 * Expand dependency version ranges for `transformers` and `clock`.
diff --git a/stopwatch.cabal b/stopwatch.cabal
--- a/stopwatch.cabal
+++ b/stopwatch.cabal
@@ -1,5 +1,5 @@
 name:                   stopwatch
-version:                0.1.0.1
+version:                0.1.0.2
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -19,7 +19,7 @@
   ghc-options:          -Wall -fno-warn-unused-imports
   exposed-modules:      Control.StopWatch
   -- other-modules:
-  build-depends:        base >=2 && <6,
+  build-depends:        base >=2 && <5.0,
                         transformers >=0.3.0 && <0.6,
                         -- clock <0.5 is buggy!
                         clock >=0.5 && <0.8