diff --git a/Gemfile.lock b/Gemfile.lock
index 1fa8b86..0d2ca22 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -19,8 +19,7 @@ GEM
       selenium-webdriver (>= 0.0.27)
       xpath (~> 0.1.2)
     celerity (0.8.6)
-    childprocess (0.1.6)
-      ffi (~> 0.6.3)
+    childprocess (3.0.0)
     chunky_png (0.12.0)
     columnize (0.3.2)
     compass (0.11.beta.2)
@@ -31,8 +30,7 @@ GEM
     daemons (1.1.0)
     diff-lcs (1.1.2)
     eventmachine (0.12.10)
-    ffi (0.6.3)
-      rake (>= 0.8.7)
+    ffi (1.11.1)
     fuubar (0.0.3)
       rspec (~> 2.0)
       rspec-instafail (~> 0.1.4)
@@ -48,7 +46,6 @@ GEM
       notifiers (>= 1.1.0)
       watchr (>= 0.7)
     json (1.4.6)
-    json_pure (1.4.6)
     launchy (0.3.7)
       configuration (>= 0.0.5)
       rake (>= 0.8.1)
@@ -74,7 +71,7 @@ GEM
     rack (1.2.1)
     rack-test (0.5.7)
       rack (>= 1.0)
-    rake (0.8.7)
+    rake (13.0.0)
     rb-appscript (0.6.0)
     rspec (2.4.0)
       rspec-core (~> 2.4.0)
@@ -101,13 +98,11 @@ GEM
     ruby-progressbar (0.0.9)
     ruby_core_source (0.1.4)
       archive-tar-minitar (>= 0.5.2)
-    rubyzip (0.9.4)
+    rubyzip (2.0.0)
     sass (3.1.0.alpha.221)
-    selenium-webdriver (0.1.2)
-      childprocess (~> 0.1.5)
-      ffi (~> 0.6.3)
-      json_pure
-      rubyzip
+    selenium-webdriver (3.142.6)
+      childprocess (>= 0.5, < 4.0)
+      rubyzip (>= 1.2.2)
     shotgun (0.8)
       rack (>= 1.0)
     sinatra (1.1.2)