diff --git a/Gemfile.lock b/Gemfile.lock
index 0eace36..55cae0c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,8 +84,8 @@ GEM
       minitest (>= 5.1)
       tzinfo (~> 2.0)
       zeitwerk (~> 2.3)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrussh (1.3.1)
       sshkit (>= 1.6.1, != 1.7.0)
     better_errors (2.5.1)
@@ -206,7 +206,7 @@ GEM
       method_source (~> 0.9.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    public_suffix (3.0.3)
+    public_suffix (3.1.1)
     quick_search-arxiv_searcher (0.0.1)
       nokogiri (~> 1.6)
       quick_search-core (~> 0)