diff --git a/Gemfile.lock b/Gemfile.lock
index 68b18ac..f20343c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colored (1.2)
     concurrent-ruby (1.0.5)
     ethon (0.11.0)
@@ -30,7 +30,7 @@ GEM
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     parallel (1.12.1)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rake (12.3.1)
     thread_safe (0.3.6)
     typhoeus (0.8.0)