diff --git a/Gemfile.lock b/Gemfile.lock
index c389c8f..e5cd975 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,7 +31,7 @@ GEM
       ast (~> 2.4.0)
     powerpack (0.1.2)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.0)
       rack
     rainbow (3.0.0)
     rake (13.0.1)
@@ -59,13 +59,13 @@ GEM
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.10.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     ruby_audit (1.2.0)
       bundler-audit (~> 0.6.0)
-    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)
     thor (0.20.3)
     tilt (2.0.10)