diff --git a/Gemfile.lock b/Gemfile.lock
index 1c02b2f70..4a808ed7c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       racc
     pathname (0.4.0)
     power_assert (2.0.5)
-    pstore (0.1.4)
+    pstore (0.2.0)
     psych (4.0.6)
       stringio
     public_suffix (6.0.1)