diff --git a/Gemfile b/Gemfile
index 37728b4..1bcd30e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ gem 'jbuilder', '~> 2.7'
 gem 'nokogiri', '>= 1.11.4'
 gem 'octokit', '~> 4.20'
 gem 'ogp'
-gem 'pagy', '~> 3.5'
+gem 'pagy', '~> 5.9'
 gem 'pg', '~> 1.1'
 gem 'postmark-rails'
 gem 'prawn'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6f1dede..4ee61d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -249,7 +249,8 @@ GEM
     ogp (0.5.0)
       oga (~> 3.3)
     orm_adapter (0.5.0)
-    pagy (3.11.0)
+    pagy (5.9.0)
+      activesupport
     pdf-core (0.9.0)
     pg (1.2.3)
     postmark (1.21.8)
@@ -503,7 +504,7 @@ DEPENDENCIES
   nokogiri (>= 1.11.4)
   octokit (~> 4.20)
   ogp
-  pagy (~> 3.5)
+  pagy (~> 5.9)
   pg (~> 1.1)
   postmark-rails
   prawn