diff --git a/revised/blog-after/Gemfile.lock b/revised/blog-after/Gemfile.lock
index df1e4cc..bb6e722 100644
--- a/revised/blog-after/Gemfile.lock
+++ b/revised/blog-after/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
       multi_json (~> 1.3)
       omniauth-oauth (~> 1.0)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-ssl (1.3.2)