diff --git a/Gemfile.lock b/Gemfile.lock
index e8ea0f0d..bea62f8c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,8 +44,8 @@ GEM
       i18n (~> 0.7)
       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)
     annotate (2.7.2)
       activerecord (>= 3.2, < 6.0)
       rake (>= 10.4, < 13.0)
@@ -711,7 +711,7 @@ GEM
     pg (0.21.0-x86-mingw32)
     polyamorous (1.3.1)
       activerecord (>= 3.0)
-    public_suffix (3.0.0)
+    public_suffix (4.0.7)
     puma (3.9.1)
     puma (3.9.1-java)
     rack (2.0.3)