diff --git a/Gemfile.lock b/Gemfile.lock
index 9431adb..28530b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.2, >= 2.2.2)
-    addressable (2.8.6)
-      public_suffix (>= 2.0.2, < 6.0)
+    addressable (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     bulma-clean-theme (0.13.3)
       jekyll (>= 3.9, < 5.0)
       jekyll-feed (~> 0.15)
@@ -233,7 +233,7 @@ GEM
       sawyer (~> 0.9)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (5.0.5)
+    public_suffix (5.1.1)
     racc (1.8.1)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)