diff --git a/Gemfile.lock b/Gemfile.lock
index 1b01476..6811408 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,8 +39,8 @@ GEM
     parser (2.7.0.3)
       ast (~> 2.4.0)
     power_assert (1.1.6)
-    rack (2.2.2)
-    rack-protection (2.0.8.1)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -78,11 +78,11 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.7)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
-    sinatra (2.0.8.1)
+    ruby2_keywords (0.0.5)
+    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)
     sinatra-activerecord (2.0.14)
       activerecord (>= 3.2)