diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4dead0b..bc08326 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to `Tax` will be documented in this file
 
+## 1.1.1 - 2018-03-19
+
+- Fix error in migrations, removed index for missed columns
+
 ## 1.1.0 - 2018-03-18
 
 - Added support for calculate amounts of models
diff --git a/database/migrations/create_taxes_tables.php.stub b/database/migrations/create_taxes_tables.php.stub
index 6112f18..d8e07bd 100644
--- a/database/migrations/create_taxes_tables.php.stub
+++ b/database/migrations/create_taxes_tables.php.stub
@@ -18,8 +18,6 @@ class CreateTaxesTables extends Migration
             $table->string('name');
             $table->boolean('active')->default(true);
             $table->timestamps();
-
-            $table->index(["model_type", "model_id"]);
         });
 
         Schema::create('taxes', function (Blueprint $table) {