diff --git a/Gemfile b/Gemfile
index 88c8c267..90dc6af6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 # Specify your gem's dependencies in activerecord-postgis-adapter.gemspec
 gemspec
 
-gem "pg", "~> 0.17", platform: :ruby
+gem "pg", "~> 1.4", platform: :ruby
 gem "activerecord-jdbcpostgresql-adapter", "~> 1.3.9", platform: :jruby
 gem "ffi-geos", platform: :jruby
 gem "byebug", platform: :mri_23
diff --git a/gemfiles/ar51.gemfile b/gemfiles/ar51.gemfile
index aad2b4af..0e8a07e8 100644
--- a/gemfiles/ar51.gemfile
+++ b/gemfiles/ar51.gemfile
@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "pg", "~> 0.17", platform: :ruby
+gem "pg", "~> 1.4", platform: :ruby
 gem "activerecord-jdbcpostgresql-adapter", "~> 1.3.9", platform: :jruby
 gem "ffi-geos", platform: :jruby
 gem "byebug", platform: :mri_23