diff --git a/src/api/Gemfile.lock b/src/api/Gemfile.lock
index 84dc6601e07..1751d3c0e99 100644
--- a/src/api/Gemfile.lock
+++ b/src/api/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    acts_as_list (0.9.12)
+    acts_as_list (0.9.15)
       activerecord (>= 3.0)
     acts_as_tree (2.7.1)
       activerecord (>= 3.0.0)