diff --git a/scripts/dist-main.clj b/scripts/dist-main.clj
index 851c85b13..c8fdff0d6 100644
--- a/scripts/dist-main.clj
+++ b/scripts/dist-main.clj
@@ -13,7 +13,7 @@
     :output-dir "dist/js/main"
     :closure-defines {"uxbox.common.constants.url"
                       "https://test.uxbox.io/api"}
-    :optimizations :simple
+    :optimizations :advanced
     :externs ["externs/main.js"]
     :static-fns true
     :pretty-print false
diff --git a/scripts/dist-worker.clj b/scripts/dist-worker.clj
index 7f7250e5d..940ba9a82 100644
--- a/scripts/dist-worker.clj
+++ b/scripts/dist-worker.clj
@@ -11,7 +11,7 @@
     :output-dir "dist/js/worker"
     :asset-path "js"
     :parallel-build true
-    :optimizations :simple
+    :optimizations :advanced
     :static-fns true
     :pretty-print false
     :language-in  :ecmascript6