diff --git a/Gemfile.lock b/Gemfile.lock
index 7e42701d..5b10165f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,8 +95,7 @@ GEM
       xpath (>= 2.0, < 4.0)
     case_transform (0.2)
       activesupport
-    childprocess (0.9.0)
-      ffi (~> 1.0, >= 1.0.11)
+    childprocess (3.0.0)
     chromedriver-helper (2.1.1)
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
@@ -136,7 +135,7 @@ GEM
       railties (>= 4.2.0)
     faker (1.9.3)
       i18n (>= 0.7)
-    ffi (1.10.0)
+    ffi (1.11.1)
     foreman (0.85.0)
       thor (~> 0.19.1)
     globalid (0.4.2)
@@ -249,7 +248,7 @@ GEM
       railties (>= 4.2.0, < 6.0)
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
-    rubyzip (1.2.2)
+    rubyzip (2.0.0)
     safe_yaml (1.0.5)
     sass (3.7.3)
       sass-listen (~> 4.0.0)
@@ -262,9 +261,9 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    selenium-webdriver (3.141.0)
-      childprocess (~> 0.5)
-      rubyzip (~> 1.2, >= 1.2.2)
+    selenium-webdriver (3.142.6)
+      childprocess (>= 0.5, < 4.0)
+      rubyzip (>= 1.2.2)
     slack-notifier (2.3.2)
     spring (2.0.2)
       activesupport (>= 4.2)