diff --git a/Gemfile b/Gemfile
index 92620d9..10a5167 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'thor', '~> 1.2'
 gem 'rack', '~> 2.2.4'
 
 gem 'hamlit-rails', '~> 0.2'
-gem 'pg', '~> 1.4'
+gem 'pg', '~> 1.5'
 gem 'makara', '~> 0.5'
 gem 'pghero', '~> 2.8'
 gem 'dotenv-rails', '~> 2.8'
diff --git a/Gemfile.lock b/Gemfile.lock
index 25ffebd..033e545 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -461,7 +461,7 @@ GEM
     parslet (2.0.0)
     pastel (0.8.0)
       tty-color (~> 0.5)
-    pg (1.4.5)
+    pg (1.5.3)
     pghero (2.8.3)
       activerecord (>= 5)
     pkg-config (1.5.1)
@@ -821,7 +821,7 @@ DEPENDENCIES
   omniauth-saml (~> 1.10)
   ox (~> 2.14)
   parslet
-  pg (~> 1.4)
+  pg (~> 1.5)
   pghero (~> 2.8)
   pkg-config (~> 1.5)
   posix-spawn