diff --git a/Gemfile.lock b/Gemfile.lock
index 154c5d5..4c216e8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.0)
     aws-eventstream (1.0.3)
     aws-sdk (2.11.337)
@@ -180,7 +180,7 @@ GEM
       tty-color (~> 0.5)
     plist (3.5.0)
     proxifier (1.0.3)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     rack (2.0.7)
     rainbow (3.0.0)
     rake (12.3.3)