diff --git a/Gemfile.lock b/Gemfile.lock
index 14cf1538..0688896c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -58,8 +58,8 @@ GEM
     acts-as-taggable-on (5.0.0)
       activerecord (>= 4.2.8)
     acts_as_commentable (4.0.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrake (7.4.0)
       airbrake-ruby (~> 2.12)
     airbrake-ruby (2.12.0)
@@ -253,7 +253,7 @@ GEM
       method_source (~> 1.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    public_suffix (4.0.5)
+    public_suffix (4.0.7)
     rack (1.6.13)
     rack-livereload (0.3.17)
       rack