diff --git a/Gemfile b/Gemfile
index 98ffae3..ef15310 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem 'simpleidn', '~> 0.2.1' # For punycode
 
 # database
 gem 'activerecord', '~> 7.0'
-gem 'pg',           '~> 1.4.0'
+gem 'pg',           '~> 1.5.0'
 gem 'daemons', '~> 1.4.1'
 gem 'dotenv'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 2054bd9..41fe2a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     parallel (1.20.1)
     parser (3.0.2.0)
       ast (~> 2.4.1)
-    pg (1.4.0)
+    pg (1.5.6)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -74,7 +74,7 @@ DEPENDENCIES
   eventmachine (~> 1.2.7)
   mina (~> 1.2.4)
   minitest
-  pg (~> 1.4.0)
+  pg (~> 1.5.0)
   pry (~> 0.14.1)
   rubocop
   simplecov (= 0.17.1)