diff --git a/Gemfile.lock b/Gemfile.lock
index f396de41b1..4ef7e17a33 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    childprocess (3.0.0)
+    childprocess (4.1.0)
     chronic (0.10.2)
     chunky_png (1.4.0)
     climate_control (0.2.0)
@@ -580,8 +580,9 @@ GEM
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
     sd_notify (0.1.1)
-    selenium-webdriver (3.142.7)
-      childprocess (>= 0.5, < 4.0)
+    selenium-webdriver (4.0.2)
+      childprocess (>= 0.5, < 5.0)
+      rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2)
     semantic_range (3.0.0)
     shoulda-matchers (5.0.0)