diff --git a/Gemfile.lock b/Gemfile.lock
index 5c13dccd..bf54358a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
       nokogiri (~> 1.8, >= 1.8.4)
     public_suffix (4.0.6)
     racc (1.6.1)
-    rack (2.2.3.1)
+    rack (2.2.6.2)
     rake (13.0.6)
     rdf (3.2.5)
       link_header (~> 0.0, >= 0.0.8)