diff --git a/Gemfile.lock b/Gemfile.lock
index 438f0904..3537a5d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -367,7 +367,7 @@ GEM
       hashery (~> 2.0)
       ruby-rc4
       ttfunk
-    pg (1.5.3)
+    pg (1.5.6)
     prawn (2.4.0)
       pdf-core (~> 0.9.0)
       ttfunk (~> 1.7)