diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0936c94..cd53496 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v1.12.6
+
+- Fix a build issue for Solaris
+
 ## v1.12.5
 
 - Upgrade mruby-yaml
diff --git a/mrblib/mitamae/version.rb b/mrblib/mitamae/version.rb
index 8c6c263..483db8c 100644
--- a/mrblib/mitamae/version.rb
+++ b/mrblib/mitamae/version.rb
@@ -1,3 +1,3 @@
 module MItamae
-  VERSION = '1.12.5'
+  VERSION = '1.12.6'
 end