diff --git a/Gemfile b/Gemfile
index 4d485387ee79d460fa17412831fab67ec9f3722a..e8d943acff623ea302349667558637c382b52d73 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@
 source 'https://rubygems.org'
 ruby '>= 2.7.0', '< 3.1.0'
 
-gem 'pkg-config', '~> 1.4'
+gem 'pkg-config', '~> 1.5'
 gem 'rexml', '~> 3.2'
 
 gem 'puma', '~> 5.6'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5a39f040f501dabb4d46f23714895719889c87cd..fdc45a809b3a4b08553606d91dde9385e51217a5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -462,7 +462,7 @@ GEM
     pg (1.4.5)
     pghero (2.8.3)
       activerecord (>= 5)
-    pkg-config (1.4.9)
+    pkg-config (1.5.1)
     posix-spawn (0.3.15)
     premailer (1.18.0)
       addressable
@@ -810,7 +810,7 @@ DEPENDENCIES
   parslet
   pg (~> 1.4)
   pghero (~> 2.8)
-  pkg-config (~> 1.4)
+  pkg-config (~> 1.5)
   posix-spawn
   premailer-rails
   private_address_check (~> 0.5)