diff --git a/Gemfile.lock b/Gemfile.lock
index 4c54b124..a98ff132 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
     capybara (3.32.2)
@@ -65,7 +65,7 @@ GEM
     progress_bar (1.3.1)
       highline (>= 1.6, < 3)
       options (~> 2.3.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rack (1.6.13)
     rack-jekyll (0.5.0)
       jekyll (>= 1.3)