diff --git a/Gemfile.lock b/Gemfile.lock
index f0e40fb..fd8fcb1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,7 +62,7 @@ GEM
     annotate (2.6.5)
       activerecord (>= 2.3.0)
       rake (>= 0.8.7)
-    arbre (1.0.2)
+    arbre (1.1.1)
       activesupport (>= 3.0.0)
     arel (6.0.4)
     ast (2.3.0)
@@ -148,7 +148,8 @@ GEM
       actionpack (>= 4.1, < 5.2)
       activesupport (>= 4.1, < 5.2)
     hashie (3.5.6)
-    i18n (0.8.6)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     inherited_resources (1.7.2)
       actionpack (>= 3.2, < 5.2.x)
       has_scope (~> 0.6)
@@ -276,7 +277,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
-    rake (12.1.0)
+    rake (13.0.1)
     ransack (1.8.4)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
@@ -364,7 +365,7 @@ GEM
     thor (0.20.0)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.3)
+    tzinfo (1.2.6)
       thread_safe (~> 0.1)
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)