diff --git a/Gemfile.lock b/Gemfile.lock
index b3247cef1d..a7fe6a06d1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -178,8 +178,7 @@ GEM
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (>= 2.0, < 4.0)
-    childprocess (0.9.0)
-      ffi (~> 1.0, >= 1.0.11)
+    childprocess (3.0.0)
     chronic (0.10.2)
     chunky_png (1.3.10)
     climate_control (0.2.0)
@@ -266,7 +265,7 @@ GEM
     faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
     ffaker (1.22.1)
-    ffi (1.10.0)
+    ffi (1.11.3)
     figaro (1.1.1)
       thor (~> 0.14)
     fission (0.5.0)
@@ -638,9 +637,9 @@ GEM
     select2-rails (3.4.9)
       sass-rails
       thor (~> 0.14)
-    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)
     shoulda-matchers (2.8.0)
       activesupport (>= 3.0.0)
     simplecov (0.17.1)