diff --git a/Gemfile.lock b/Gemfile.lock
index 9ea9161..7d24aae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -235,9 +235,9 @@ GEM
     parser (3.3.10.0)
       ast (~> 2.4.1)
       racc
-    pg (1.6.2)
-    pg (1.6.2-x64-mingw-ucrt)
-    pg (1.6.2-x86_64-linux)
+    pg (1.6.3)
+    pg (1.6.3-x64-mingw-ucrt)
+    pg (1.6.3-x86_64-linux)
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)