diff --git a/Gemfile.lock b/Gemfile.lock
index b57dac4..fa2b3a8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -239,7 +239,7 @@ GEM
     parser (3.3.5.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.8)
+    pg (1.5.9)
     popper_js (2.11.8)
     pry (0.14.2)
       coderay (~> 1.1)