diff --git a/Gemfile.lock b/Gemfile.lock
index 0922c9868eeac800cf1860ebab62e12a6b427834..67cfee0072e7011ed1ffa92141e086a9f42e607f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/activeadmin/activeadmin.git
-  revision: 7ff122d580835d70cfc424bc251e70ab0ec51b3d
+  revision: 8ddc07eefb9c4c39f96e1ad990fe7789555fd4ff
   specs:
     activeadmin (1.0.0.pre4)
       arbre (~> 1.0, >= 1.0.2)
@@ -177,7 +177,7 @@ GEM
       haml (>= 4.0.6, < 5.0)
       html2haml (>= 1.0.1)
       railties (>= 4.0.1)
-    haml_lint (0.20.0)
+    haml_lint (0.21.0)
       haml (~> 4.0)
       rake (>= 10, < 13)
       rubocop (>= 0.47.0)