diff --git a/Gemfile.lock b/Gemfile.lock
index 76dbec5..0ba8749 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,8 +62,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (~> 1.5)
       xpath (~> 3.2)
-    childprocess (2.0.0)
-      rake (< 13.0)
+    childprocess (3.0.0)
     coderay (1.1.2)
     concurrent-ruby (1.1.5)
     crack (0.4.3)
@@ -180,7 +179,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.3)
+    rake (13.0.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -218,8 +217,8 @@ GEM
       tilt (>= 1.1, < 3)
     sdoc (1.0.0)
       rdoc (>= 5.0)
-    selenium-webdriver (3.142.5)
-      childprocess (>= 0.5, < 3.0)
+    selenium-webdriver (3.142.6)
+      childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
     shoulda-matchers (4.1.2)
       activesupport (>= 4.2.0)