diff --git a/ui/package.json b/ui/package.json
index ad95ef4a7a..ad9a7a67a3 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "@flowjs/ng-flow": "^2.7.1",
-    "ace-builds": "^1.2.5",
+    "ace-builds": "1.3.1",
     "angular": "1.5.8",
     "angular-animate": "1.5.8",
     "angular-aria": "1.5.8",