diff --git a/Gemfile.lock b/Gemfile.lock
index 9b6f7b1..6424ea9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,15 +12,15 @@ GEM
     puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.0)
       rack
     rake (13.0.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     sequel (5.28.0)
-    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)
     websocket-driver (0.7.3)