diff --git a/examples/Gemfile.lock b/examples/Gemfile.lock
index 046f576..c8e7125 100644
--- a/examples/Gemfile.lock
+++ b/examples/Gemfile.lock
@@ -17,13 +17,13 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     rack (2.2.3)
-    rack-protection (2.1.0)
+    rack-protection (2.2.0)
       rack
     ruby2_keywords (0.0.5)
-    sinatra (2.1.0)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
       rack (~> 2.2)
-      rack-protection (= 2.1.0)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     tilt (2.0.10)