diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for greskell-websocket
 
+## 1.0.0.3  -- 2024-11-21
+
+* Confirm test with `hashtable-1.4`.
+
 ## 1.0.0.2  -- 2024-09-12
 
 * Update dependency version bounds with cabal-plan-bounds.
diff --git a/greskell-websocket.cabal b/greskell-websocket.cabal
--- a/greskell-websocket.cabal
+++ b/greskell-websocket.cabal
@@ -1,5 +1,5 @@
 name:                   greskell-websocket
-version:                1.0.0.2
+version:                1.0.0.3
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -54,7 +54,7 @@
                         async ^>=2.2.4,
                         stm ^>=2.5.0,
                         websockets ^>=0.12.7 || ^>=0.13.0,
-                        hashtables ^>=1.3,
+                        hashtables ^>=1.3 || ^>=1.4.0,
                         safe-exceptions ^>=0.1.7,
                         vector ^>=0.12.3 || ^>=0.13.0