diff --git a/lib/grape-active_model_serializers/version.rb b/lib/grape-active_model_serializers/version.rb
index 0031454..b7b5adb 100644
--- a/lib/grape-active_model_serializers/version.rb
+++ b/lib/grape-active_model_serializers/version.rb
@@ -1,5 +1,5 @@
 module Grape
   module ActiveModelSerializers
-    VERSION = '1.2.1'
+    VERSION = '1.3.1'
   end
 end