diff --git a/Gemfile.lock b/Gemfile.lock
index 72a0ee9a21..3b6e908720 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    childprocess (3.0.0)
+    childprocess (4.1.0)
     coderay (1.1.2)
     concurrent-ruby (1.1.9)
     crack (0.4.5)
@@ -264,7 +264,7 @@ GEM
       rspec-support (~> 3.10)
     rspec-support (3.10.2)
     ruby2_keywords (0.0.4)
-    rubyzip (2.3.0)
+    rubyzip (2.3.2)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
@@ -274,8 +274,9 @@ GEM
       sprockets-rails
       tilt
     selectize-rails (0.12.6)
-    selenium-webdriver (3.142.7)
-      childprocess (>= 0.5, < 4.0)
+    selenium-webdriver (4.0.3)
+      childprocess (>= 0.5, < 5.0)
+      rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2)
     sentry-raven (3.1.2)
       faraday (>= 1.0)