diff --git a/Gemfile.lock b/Gemfile.lock
index 7359f94..4e08001 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,17 +67,17 @@ GEM
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    rack (2.2.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     samovar (2.1.4)
       console (~> 1.0)
       mapping (~> 1.0)
-    sinatra (2.0.8.1)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     tilt (2.0.10)
     timers (4.3.0)