diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for greskell
 
+## 1.1.0.3  -- 2020-06-21
+
+* Confirm test with `base-4.14.0.0`.
+
 ## 1.1.0.2  -- 2020-06-06
 
 * Support `doctest-0.17`.
diff --git a/greskell.cabal b/greskell.cabal
--- a/greskell.cabal
+++ b/greskell.cabal
@@ -1,5 +1,5 @@
 name:                   greskell
-version:                1.1.0.2
+version:                1.1.0.3
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -38,7 +38,7 @@
                         Data.Greskell.PMap,
                         Data.Greskell.NonEmptyLike
   -- other-modules:        
-  build-depends:        base >=4.9.0.0 && <4.14,
+  build-depends:        base >=4.9.0.0 && <4.15,
                         greskell-core >=0.1.3.0 && <0.2,
                         text >=1.2.2.1 && <1.3,
                         transformers >=0.5.2 && <0.6,