diff --git a/Gemfile.lock b/Gemfile.lock
index 39590ca0..9db10f71 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -252,7 +252,7 @@ GEM
     parser (3.3.6.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.7)
+    pg (1.5.9)
     popper_js (1.16.1)
     psych (5.2.0)
       stringio