diff --git a/Gemfile.lock b/Gemfile.lock
index b111ae9e..a9d6b4c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -230,7 +230,7 @@ GEM
       racc
     patience_diff (1.2.0)
       optimist (~> 3.0)
-    pg (1.5.8)
+    pg (1.5.9)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)