diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for net-spider
 
+## 0.3.2.1  -- 2019-10-04
+
+* Confirm test with `hashable-1.3.0.0`.
+
 ## 0.3.2.0  -- 2019-08-04
 
 * Add `Interval` module.
diff --git a/net-spider.cabal b/net-spider.cabal
--- a/net-spider.cabal
+++ b/net-spider.cabal
@@ -1,5 +1,5 @@
 name:                   net-spider
-version:                0.3.2.0
+version:                0.3.2.1
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -55,7 +55,7 @@
                         safe-exceptions >=0.1.6 && <0.2,
                         text >=1.2.2.2 && <1.3,
                         unordered-containers >=0.2.8 && <0.3,
-                        hashable >=1.2.6.1 && <1.3,
+                        hashable >=1.2.6.1 && <1.4,
                         containers >=0.5.10.2 && <0.7,
                         data-interval >=1.3.0 && <1.4,
                         extended-reals >=0.2.3.0 && <0.3,