diff --git a/Gemfile.lock b/Gemfile.lock
index a1efb757..c61b12f3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -193,7 +193,7 @@ GEM
     parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     psych (5.1.2)
       stringio
     puma (6.4.2)