diff --git a/Gemfile.lock b/Gemfile.lock
index 38814f3e..8868e932 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,8 +76,8 @@ GEM
       activerecord (>= 4.2)
     acts_as_tree (2.9.1)
       activerecord (>= 3.0.0)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     ast (2.4.1)
@@ -333,7 +333,7 @@ GEM
       pry (~> 0.13.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (5.0.4)
       nio4r (~> 2.0)
     rack (2.2.3)