diff --git a/advanced_topics/02_chrome_logging/Gemfile.lock b/advanced_topics/02_chrome_logging/Gemfile.lock
index a4ccb72..cb6d187 100644
--- a/advanced_topics/02_chrome_logging/Gemfile.lock
+++ b/advanced_topics/02_chrome_logging/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)
     capybara (3.28.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -19,7 +19,7 @@ GEM
     mini_portile2 (2.4.0)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)