diff --git a/Gemfile.lock b/Gemfile.lock
index c5aa477bc..95feb5aa1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -55,7 +55,7 @@ GEM
       public_suffix (~> 2.0, >= 2.0.2)
     arel (6.0.4)
     ast (2.3.0)
-    autoprefixer-rails (7.1.1)
+    autoprefixer-rails (7.1.1.2)
       execjs
     bcrypt (3.1.11)
     better_errors (2.1.1)
@@ -83,7 +83,7 @@ GEM
       uniform_notifier (~> 1.10.0)
     byebug (9.0.6)
     cancancan (1.17.0)
-    capybara (2.14.2)
+    capybara (2.14.3)
       addressable
       mime-types (>= 1.16)
       nokogiri (>= 1.3.3)
@@ -170,7 +170,7 @@ GEM
       faraday
       multi_json
     erubis (2.7.0)
-    excon (0.56.0)
+    excon (0.57.0)
     execjs (2.7.0)
     factory_girl (4.8.0)
       activesupport (>= 3.0.0)
@@ -343,7 +343,7 @@ GEM
       mimemagic (~> 0.3.0)
     parser (2.4.0.0)
       ast (~> 2.2)
-    pg (0.20.0)
+    pg (0.21.0)
     phantomjs (2.1.1.0)
     plupload-rails (1.2.1)
       rails (>= 3.1)
@@ -450,10 +450,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    selenium-webdriver (3.4.0)
+    selenium-webdriver (3.4.2)
       childprocess (~> 0.5)
       rubyzip (~> 1.0)
-      websocket (~> 1.0)
     sexp_processor (4.9.0)
     shellany (0.0.1)
     sidekiq (5.0.2)
@@ -504,7 +503,6 @@ GEM
       nokogiri (>= 1.2.0)
       rack (>= 1.0)
       rack-test (>= 0.5.3)
-    websocket (1.2.4)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.2)