diff --git a/CHANGELOG.md b/CHANGELOG.md
index 919928f0..4ec9b8d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## 1.2
 
+### 1.2.5
+- Avoid referencing ActiveRecord::Base
+  ([#550](https://github.com/shioyama/mobility/pull/550))
+
 ### 1.2.4
 - Fix fallbacks performance regression
   ([#548](https://github.com/shioyama/mobility/pull/548))
diff --git a/README.md b/README.md
index 59773f0c..f5aa743e 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ Installation
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'mobility', '~> 1.2.4'
+gem 'mobility', '~> 1.2.5'
 ```
 
 ### ActiveRecord (Rails)
diff --git a/lib/mobility/version.rb b/lib/mobility/version.rb
index b802e8b0..5fd6f073 100644
--- a/lib/mobility/version.rb
+++ b/lib/mobility/version.rb
@@ -8,7 +8,7 @@ def self.gem_version
   module VERSION
     MAJOR = 1
     MINOR = 2
-    TINY = 4
+    TINY = 5
     PRE = nil
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")