diff --git a/Gemfile.lock b/Gemfile.lock
index e7a7409..09c570f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,8 +65,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (~> 1.2)
       xpath (~> 3.2)
-    childprocess (0.9.0)
-      ffi (~> 1.0, >= 1.0.11)
+    childprocess (3.0.0)
     chromedriver-helper (2.1.0)
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
@@ -97,7 +96,7 @@ GEM
       railties (>= 3.0.0)
     faker (1.9.1)
       i18n (>= 0.7)
-    ffi (1.9.25)
+    ffi (1.11.3)
     font-awesome-sass (4.7.0)
       sass (>= 3.2)
     formatador (0.2.5)
@@ -252,7 +251,7 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.10.0)
-    rubyzip (1.2.2)
+    rubyzip (2.0.0)
     sass (3.5.7)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -264,9 +263,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    selenium-webdriver (3.14.1)
-      childprocess (~> 0.5)
-      rubyzip (~> 1.2, >= 1.2.2)
+    selenium-webdriver (3.142.7)
+      childprocess (>= 0.5, < 4.0)
+      rubyzip (>= 1.2.2)
     sexp_processor (4.11.0)
     shellany (0.0.1)
     shoulda-matchers (3.1.2)