diff --git a/example_app/Gemfile.lock b/example_app/Gemfile.lock
index 0ffbabf..af77439 100644
--- a/example_app/Gemfile.lock
+++ b/example_app/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
     rack (2.2.3)
     rack-flash3 (1.0.5)
       rack
-    rack-protection (2.0.2)
+    rack-protection (2.2.0)
       rack
     rack-test (0.7.0)
       rack (>= 1.0, < 3)
@@ -70,15 +70,15 @@ GEM
       ffi (>= 0.5.0, < 2)
     rerun (0.11.0)
       listen (~> 3.0)
-    ruby2_keywords (0.0.4)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    sinatra (2.0.2)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.2)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     tilt (2.0.10)
     xpath (2.1.0)