diff --git a/Gemfile.lock b/Gemfile.lock
index 4d55e52..fba3175 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -159,7 +159,8 @@ GEM
     parser (3.3.8.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.9)
+    pg (1.6.0-arm64-darwin)
+    pg (1.6.0-x86_64-linux)
     pp (0.6.2)
       prettyprint
     prettyprint (0.2.0)