diff --git a/Gemfile.lock b/Gemfile.lock
index 4239d46..f500f58 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
     mustermann-grape (1.0.1)
       mustermann (>= 1.0.0)
     pg (1.2.3)
-    rack (2.2.2)
+    rack (2.2.3)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-cors (1.1.1)