diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for greskell-websocket
 
+## 1.0.0.6  -- 2026-05-25
+
+- Support aeson-2.3.
+
 ## 1.0.0.5  -- 2026-04-21
 
 - Bump dependency version 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:                1.0.0.5
+version:                1.0.0.6
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -48,7 +48,7 @@
                         bytestring ^>=0.10.9 || ^>=0.11.3 || ^>=0.12.0,
                         base64-bytestring ^>=1.2.1,
                         text ^>=1.2.3 || ^>=2.0.2 || ^>=2.1,
-                        aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3,
+                        aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3 || ^>=2.3.0,
                         unordered-containers ^>=0.2.15,
                         uuid ^>=1.3.15,
                         async ^>=2.2.4,
@@ -82,7 +82,7 @@
   build-tool-depends:   hspec-discover:hspec-discover
   build-depends:        base ^>=4.13.0 || ^>=4.14.0 || ^>=4.15.0 || ^>=4.16.0 || ^>=4.17.0 || ^>=4.18.0 || ^>=4.19.0 || ^>=4.20.0 || ^>=4.21.0 || ^>=4.22.0,
                         greskell-websocket,
-                        aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3,
+                        aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3 || ^>=2.3.0,
                         uuid ^>=1.3.15,
                         bytestring ^>=0.10.9 || ^>=0.11.3 || ^>=0.12.0,
                         unordered-containers ^>=0.2.15,
@@ -113,7 +113,7 @@
     build-depends:        base ^>=4.13.0 || ^>=4.14.0 || ^>=4.15.0 || ^>=4.16.0 || ^>=4.17.0 || ^>=4.18.0 || ^>=4.19.0 || ^>=4.20.0 || ^>=4.21.0 || ^>=4.22.0,
                           greskell-websocket,
                           greskell-core ^>=1.0.0,
-                          aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3,
+                          aeson ^>=2.0.2 || ^>=2.1.0 || ^>=2.2.3 || ^>=2.3.0,
                           uuid ^>=1.3.15,
                           unordered-containers ^>=0.2.15,
                           text ^>=1.2.3 || ^>=2.0.2 || ^>=2.1,
