diff --git a/Gemfile.lock b/Gemfile.lock
index 1fca27a..ecb9e8a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -252,7 +252,7 @@ GEM
     parser (3.2.2.3)
       ast (~> 2.4.1)
       racc
-    pg (1.5.8)
+    pg (1.5.9)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)