diff --git a/Gemfile.lock b/Gemfile.lock
index f6cb336ce2..c3ec03061e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -518,7 +518,7 @@ GEM
       xml-simple
     paypal-sdk-merchant (1.106.1)
       paypal-sdk-core (~> 0.2.3)
-    pg (0.13.2)
+    pg (0.21.0)
     poltergeist (1.18.1)
       capybara (>= 2.1, < 4)
       cliver (~> 0.3.1)