diff --git a/Gemfile.lock b/Gemfile.lock
index 4f860d1..a72c11b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,7 +43,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    addressable (2.3.3)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     celluloid (0.12.4)
       facter (>= 1.6.12)
       timers (>= 1.0.0)
@@ -84,6 +85,7 @@ GEM
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
+    public_suffix (4.0.6)
     retryable (1.3.2)
     ridley (0.8.3)
       activesupport (>= 3.2.0)