diff --git a/Gemfile.lock b/Gemfile.lock
index 97a5048..06d0b18 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    ants (0.1.5)
+    ants (0.2.0)
       mongoid (>= 4.0)
       mongoid-slug (>= 4.0.0)
 
@@ -44,7 +44,7 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.0)
-    bson (3.1.2)
+    bson (3.2.4)
     builder (3.2.2)
     connection_pool (2.2.0)
     coveralls (0.8.1)
@@ -79,7 +79,7 @@ GEM
     mongoid-slug (4.0.0)
       mongoid (>= 3.0)
       stringex (~> 2.0)
-    moped (2.0.6)
+    moped (2.0.7)
       bson (~> 3.0)
       connection_pool (~> 2.0)
       optionable (~> 0.2.0)
@@ -164,10 +164,10 @@ DEPENDENCIES
   ants!
   bundler (~> 1.9)
   coveralls
-  rails (>= 4.1)
+  rails (>= 4.2)
   rake (~> 10.0)
   rspec (>= 2.0)
   rspec-aspic (>= 0.0.2)
 
 BUNDLED WITH
-   1.10.4
+   1.10.6
diff --git a/ants.gemspec b/ants.gemspec
index 8dc2642..cc857a2 100644
--- a/ants.gemspec
+++ b/ants.gemspec
@@ -23,7 +23,7 @@ Collection of concerns and helpers for Rails + Mongoid + Character web developme
   s.add_dependency('mongoid',      '>= 4.0'  )
   s.add_dependency('mongoid-slug', '>= 4.0.0')
 
-  s.add_development_dependency('rails',       [ '>= 4.1'   ])
+  s.add_development_dependency('rails',       [ '>= 4.2'   ])
   s.add_development_dependency('rspec',       [ '>= 2.0'   ])
   s.add_development_dependency('rspec-aspic', [ '>= 0.0.2' ])
   s.add_development_dependency('coveralls')