diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,10 @@
 # Revision history for stopwatch
 
+## 0.1.0.6 -- 2019-05-01
+
+* Confirmed test with `clock-0.8`.
+
+
 ## 0.1.0.5 -- 2018-03-14
 
 * Confirmed test with `hspec-2.5.0`.
diff --git a/stopwatch.cabal b/stopwatch.cabal
--- a/stopwatch.cabal
+++ b/stopwatch.cabal
@@ -1,5 +1,5 @@
 name:                   stopwatch
-version:                0.1.0.5
+version:                0.1.0.6
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -22,7 +22,7 @@
   build-depends:        base >=2 && <5.0,
                         transformers >=0.3.0 && <0.6,
                         -- clock <0.5 is buggy!
-                        clock >=0.5 && <0.8
+                        clock >=0.5 && <0.9
 
 -- executable stopwatch
 --   default-language:     Haskell2010