diff --git a/Gemfile.lock b/Gemfile.lock
index 3b212e9b7..3b4d5944e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (8.0.0)
     bcrypt (3.1.12)
     bcrypt (3.1.12-java)
@@ -124,7 +124,7 @@ GEM
     nokogiri (1.8.4-x86-mingw32)
       mini_portile2 (~> 2.3.0)
     orm_adapter (0.5.0)
-    public_suffix (3.0.2)
+    public_suffix (5.0.0)
     puma (3.12.0)
     puma (3.12.0-java)
     rack (2.0.5)