diff --git a/Gemfile.lock b/Gemfile.lock
index 5793063e7..4efc085b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -248,7 +248,7 @@ GEM
       omniauth-oauth (~> 1.1)
     parser (2.3.1.2)
       ast (~> 2.2)
-    pg (0.20.0)
+    pg (0.18.4)
     pluginator (1.3.0)
     power_assert (0.3.1)
     powerpack (0.1.1)