diff --git a/Gemfile.lock b/Gemfile.lock
index f347186..49f04dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,8 +48,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     annotate (2.7.2)
@@ -149,7 +149,7 @@ GEM
     net-ssh (6.1.0)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
-    public_suffix (2.0.5)
+    public_suffix (4.0.6)
     rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)