diff --git a/src/PHPCensor/Migrations/20170416130610_fixed_environments.php b/src/PHPCensor/Migrations/20170416130610_fixed_environments.php
new file mode 100644
index 00000000..8c2b96b4
--- /dev/null
+++ b/src/PHPCensor/Migrations/20170416130610_fixed_environments.php
@@ -0,0 +1,28 @@
+<?php
+
+use Phinx\Migration\AbstractMigration;
+
+class FixedEnvironments extends AbstractMigration
+{
+    public function up()
+    {
+        $table = $this->table('build');
+
+        if ($table->hasColumn('environment')) {
+            $table
+                ->changeColumn('environment', 'string', ['limit' => 250, 'null' => true])
+                ->save();
+        }
+    }
+
+    public function down()
+    {
+        $table = $this->table('build');
+
+        if ($table->hasColumn('environment')) {
+            $table
+                ->changeColumn('environment', 'string', ['limit' => 250, 'null' => false])
+                ->save();
+        }
+    }
+}