diff --git a/Gemfile.lock b/Gemfile.lock
index 7d01025..accebf0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -170,7 +170,7 @@ GEM
     parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.5)
     public_suffix (5.0.1)
     puma (6.4.2)
       nio4r (~> 2.0)