diff --git a/Gemfile.lock b/Gemfile.lock
index 8194f765..aeda70bb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -286,10 +286,10 @@ GEM
       multi_json (~> 1.0)
       simplecov-html (~> 0.8.0)
     simplecov-html (0.8.0)
-    sinatra (1.4.5)
+    sinatra (1.4.6)
       rack (~> 1.4)
       rack-protection (~> 1.4)
-      tilt (~> 1.3, >= 1.3.4)
+      tilt (>= 1.3, < 3)
     sinatra-contrib (1.4.2)
       backports (>= 2.0)
       multi_json