diff --git a/Gemfile.lock b/Gemfile.lock
index 96ebd5b..39b72d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -266,7 +266,7 @@ GEM
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
-    rack-protection (2.1.0)
+    rack-protection (2.2.0)
       rack
     rack-proxy (0.6.5)
       rack
@@ -343,10 +343,10 @@ GEM
     shotgun (0.9.2)
       rack (>= 1.0)
     simple-random (1.0.3)
-    sinatra (2.1.0)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
       rack (~> 2.2)
-      rack-protection (= 2.1.0)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     sixarm_ruby_unaccent (1.2.0)
     slack-notifier (2.3.2)