diff --git a/Gemfile.lock b/Gemfile.lock
index 2c47eae..300f493 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     orm_adapter (0.5.0)
     parser (2.2.3.0)
       ast (>= 1.1, < 3.0)
-    pg (0.18.3)
+    pg (0.18.4)
     powerpack (0.1.1)
     puma (2.15.3)
     rack (1.6.4)