diff --git a/CHANGES.md b/CHANGES.md
index ed1b4269..7f9a5dbe 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,9 @@
 # Changes
 
+### 2024-12-18 (2.9.1)
+
+* Fix support for Solaris 10.
+
 ### 2024-12-03 (2.9.0)
 
 * Fix C implementation of `script_safe` escaping to not confuse some other 3 wide characters with `\u2028` and `\u2029`.
diff --git a/lib/json/version.rb b/lib/json/version.rb
index 95854a43..4fc5ff83 100644
--- a/lib/json/version.rb
+++ b/lib/json/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module JSON
-  VERSION = '2.9.0'
+  VERSION = '2.9.1'
 end