diff --git a/Gemfile.lock b/Gemfile.lock
index 619aa8f..15c230f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -135,7 +135,7 @@ GEM
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging
-    rails_admin (0.8.1)
+    rails_admin (1.0.0)
       builder (~> 3.1)
       coffee-rails (~> 4.0)
       font-awesome-rails (>= 3.0, < 5)
@@ -144,10 +144,9 @@ GEM
       jquery-ui-rails (~> 5.0)
       kaminari (~> 0.14)
       nested_form (~> 0.3)
-      rack-pjax (~> 0.7)
-      rails (~> 4.0)
-      remotipart (~> 1.0)
-      safe_yaml (~> 1.0)
+      rack-pjax (>= 0.7)
+      rails (>= 4.0, < 6)
+      remotipart (~> 1.3)
       sass-rails (>= 4.0, < 6)
     rails_serve_static_assets (0.0.5)
     rails_stdout_logging (0.0.5)