diff --git a/Gemfile.lock b/Gemfile.lock
index 10b3c2c..3f021af 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
     colorize (0.8.1)
     concurrent-ruby (1.1.7)
@@ -63,7 +63,7 @@ GEM
     parallel (1.13.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rake (12.3.3)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)