diff --git a/config/firefly.php b/config/firefly.php
index 393aa77c39..fe4724a449 100644
--- a/config/firefly.php
+++ b/config/firefly.php
@@ -2,7 +2,7 @@
 
 return [
     'chart'               => 'chartjs',
-    'version'             => '3.8.4',
+    'version'             => '3.9.0',
     'index_periods'       => ['1D', '1W', '1M', '3M', '6M', '1Y', 'custom'],
     'budget_periods'      => ['daily', 'weekly', 'monthly', 'quarterly', 'half-year', 'yearly'],
     'csv_import_enabled'  => true,
diff --git a/database/migrations/2016_04_25_093451_changes_for_v385.php b/database/migrations/2016_04_25_093451_changes_for_v390.php
similarity index 91%
rename from database/migrations/2016_04_25_093451_changes_for_v385.php
rename to database/migrations/2016_04_25_093451_changes_for_v390.php
index 9783b045b9..0afc024bf1 100644
--- a/database/migrations/2016_04_25_093451_changes_for_v385.php
+++ b/database/migrations/2016_04_25_093451_changes_for_v390.php
@@ -5,9 +5,9 @@ use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
 
 /**
- * Class ChangesForV385
+ * Class ChangesForV390
  */
-class ChangesForV385 extends Migration
+class ChangesForV390 extends Migration
 {
     /**
      * Reverse the migrations.
@@ -16,6 +16,14 @@ class ChangesForV385 extends Migration
      */
     public function down()
     {
+        // restore removed unique index. Recreate it the correct way:
+        Schema::table(
+            'budget_limits', function (Blueprint $table) {
+            $table->unique(['budget_id', 'startdate', 'repeat_freq'], 'unique_bl_combi');
+        }
+        );
+
+
         $backup = $this->backupRepeatFreqsFromString();
 
         // drop string and create enum field
@@ -48,15 +56,21 @@ class ChangesForV385 extends Migration
      */
     public function up()
     {
-        // remove an index.
+        //        // remove an index.
+        Schema::table(
+            'budget_limits', function (Blueprint $table) {
+            $table->dropForeign('bid_foreign');
+        }
+        );
+
         Schema::table(
             'budget_limits', function (Blueprint $table) {
             $table->dropUnique('unique_limit');
-            $table->dropForeign('bid_foreign');
             $table->dropUnique('unique_bl_combi');
         }
         );
 
+
         // recreate foreign key:
         Schema::table(
             'budget_limits', function (Blueprint $table) {
@@ -65,7 +79,6 @@ class ChangesForV385 extends Migration
         );
 
 
-
         // backup values
         $backup = $this->backupRepeatFreqsFromEnum();