diff --git a/Gemfile.lock b/Gemfile.lock
index 660945c..1a14a1e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -241,7 +241,7 @@ GEM
     parser (3.2.2.3)
       ast (~> 2.4.1)
       racc
-    pg (1.5.3)
+    pg (1.5.4)
     postmark (1.22.1)
       json
     postmark-rails (0.22.1)