diff --git a/Gemfile.lock b/Gemfile.lock
index e6fb5ca..06f3382 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
     multipart-post (2.1.1)
     mustermann (1.0.3)
     public_suffix (3.1.0)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-protection (2.0.5)
       rack
     sinatra (2.0.5)