diff --git a/frontend-training/html-css-training/week_one/05/lesson/Gemfile.lock b/frontend-training/html-css-training/week_one/05/lesson/Gemfile.lock
index 2af0e2b..96bb05d 100644
--- a/frontend-training/html-css-training/week_one/05/lesson/Gemfile.lock
+++ b/frontend-training/html-css-training/week_one/05/lesson/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     autoprefixer-rails (9.6.1.1)
       execjs
     backports (3.15.0)
@@ -78,7 +78,7 @@ GEM
     padrino-support (0.13.3.4)
       activesupport (>= 3.1)
     parallel (1.17.0)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rack (2.0.8)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)