diff --git a/Gemfile.lock b/Gemfile.lock
index 046d43bf13..fd507523c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -148,7 +148,7 @@ GEM
       thor (~> 0.15)
     libv8 (3.16.14.7)
     listen (0.7.3)
-    logster (0.9.9)
+    logster (1.0.0.0.pre)
     lru_redux (1.1.0)
     mail (2.5.4)
       mime-types (~> 1.16)