diff --git a/Gemfile b/Gemfile
index 6160f94..be2518b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,18 +1,18 @@
 source "http://rubygems.org"
 
 group :development do
-  gem 'rake'
-  gem 'rack'
-  gem 'jekyll'
-  gem 'rdiscount'
-  gem 'pygments.rb'
-  gem 'RedCloth'
-  gem 'haml', '>= 3.1'
-  gem 'compass', '>= 0.11'
-  gem 'rubypants'
-  gem 'rb-fsevent'
-  gem 'stringex'
-  gem 'liquid', '2.2.2'
+  gem 'rake', '~> 0.9.2'
+  gem 'rack', '~> 1.4.1'
+  gem 'jekyll', '~> 0.11.2'
+  gem 'rdiscount', '~> 1.6.8'
+  gem 'pygments.rb', '~> 0.2.12'
+  gem 'RedCloth', '~> 4.2.9'
+  gem 'haml', '~> 3.1.6'
+  gem 'compass', '~> 0.12.1'
+  gem 'rubypants', '~> 0.2.0'
+  gem 'rb-fsevent', '~> 0.9'
+  gem 'stringex', '~> 1.4.0'
+  gem 'liquid', '~> 2.3.0'
 end
 
-gem 'sinatra', '1.2.6'
+gem 'sinatra', '~> 1.3.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index c7278fa..1c1bf8d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,66 +1,69 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    RedCloth (4.2.8)
+    RedCloth (4.2.9)
     albino (1.3.3)
       posix-spawn (>= 0.3.6)
     blankslate (2.1.2.4)
-    chunky_png (1.2.1)
+    chunky_png (1.2.5)
     classifier (1.3.3)
       fast-stemmer (>= 1.0.0)
-    compass (0.11.5)
+    compass (0.12.1)
       chunky_png (~> 1.2)
       fssm (>= 0.2.7)
       sass (~> 3.1)
-    directory_watcher (1.4.0)
-    fast-stemmer (1.0.0)
-    ffi (1.0.9)
-    fssm (0.2.7)
-    haml (3.1.2)
-    jekyll (0.11.0)
-      albino (>= 1.3.2)
-      classifier (>= 1.3.1)
-      directory_watcher (>= 1.1.1)
-      kramdown (>= 0.13.2)
-      liquid (>= 1.9.0)
-      maruku (>= 0.5.9)
-    kramdown (0.13.3)
-    liquid (2.2.2)
+    directory_watcher (1.4.1)
+    fast-stemmer (1.0.1)
+    ffi (1.0.11)
+    fssm (0.2.9)
+    haml (3.1.6)
+    jekyll (0.11.2)
+      albino (~> 1.3)
+      classifier (~> 1.3)
+      directory_watcher (~> 1.1)
+      kramdown (~> 0.13)
+      liquid (~> 2.3)
+      maruku (~> 0.5)
+    kramdown (0.13.6)
+    liquid (2.3.0)
     maruku (0.6.0)
       syntax (>= 1.0.0)
     posix-spawn (0.3.6)
-    pygments.rb (0.1.3)
-      rubypython (>= 0.5.1)
-    rack (1.3.2)
-    rake (0.9.2)
-    rb-fsevent (0.4.3.1)
+    pygments.rb (0.2.12)
+      rubypython (~> 0.5.3)
+    rack (1.4.1)
+    rack-protection (1.2.0)
+      rack
+    rake (0.9.2.2)
+    rb-fsevent (0.9.1)
     rdiscount (1.6.8)
     rubypants (0.2.0)
-    rubypython (0.5.1)
+    rubypython (0.5.3)
       blankslate (>= 2.1.2.3)
       ffi (~> 1.0.7)
     sass (3.1.18)
-    sinatra (1.2.6)
-      rack (~> 1.1)
-      tilt (>= 1.2.2, < 2.0)
-    stringex (1.3.0)
+    sinatra (1.3.2)
+      rack (~> 1.3, >= 1.3.6)
+      rack-protection (~> 1.2)
+      tilt (~> 1.3, >= 1.3.3)
+    stringex (1.4.0)
     syntax (1.0.0)
-    tilt (1.3.2)
+    tilt (1.3.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  RedCloth
-  compass (>= 0.11)
-  haml (>= 3.1)
-  jekyll
-  liquid (= 2.2.2)
-  pygments.rb
-  rack
-  rake
-  rb-fsevent
-  rdiscount
-  rubypants
-  sinatra (= 1.2.6)
-  stringex
+  RedCloth (~> 4.2.9)
+  compass (~> 0.12.1)
+  haml (~> 3.1.6)
+  jekyll (~> 0.11.2)
+  liquid (~> 2.3.0)
+  pygments.rb (~> 0.2.12)
+  rack (~> 1.4.1)
+  rake (~> 0.9.2)
+  rb-fsevent (~> 0.9)
+  rdiscount (~> 1.6.8)
+  rubypants (~> 0.2.0)
+  sinatra (~> 1.3.2)
+  stringex (~> 1.4.0)