diff --git a/Gemfile.lock b/Gemfile.lock
index 0fd7928..bc0beb9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -163,7 +163,7 @@ GEM
     parser (3.3.0.2)
       ast (~> 2.4.1)
       racc
-    pg (1.5.5)
+    pg (1.5.6)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)