diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,11 @@
 # Revision history for wild-bind-x11
 
+## 0.2.0.3  -- 2018-04-22
+
+* Confirmed test with `X11-1.9`.
+* Now it requires XScreenSaver extension (in Debian/Ubuntu, `libxss-dev` package).
+
+
 ## 0.2.0.2  -- 2018-04-10
 
 * Confirmed test with `base-4.11`.
diff --git a/wild-bind-x11.cabal b/wild-bind-x11.cabal
--- a/wild-bind-x11.cabal
+++ b/wild-bind-x11.cabal
@@ -1,5 +1,5 @@
 name:                   wild-bind-x11
-version:                0.2.0.2
+version:                0.2.0.3
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -31,7 +31,7 @@
   build-depends:        base >=4.6 && <4.12,
                         wild-bind >=0.1.0 && <0.2,
                         text >=1.2.0 && <1.3,
-                        X11 >=1.6.1 && <1.9,
+                        X11 >=1.6.1 && <1.10,
                         containers >=0.5.0 && <0.6,
                         transformers >=0.3.0 && <0.6,
                         mtl >=2.2.1 && <2.3,