diff --git a/Gemfile.lock b/Gemfile.lock
index 0f44758..956a672 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -350,7 +350,7 @@ GEM
       rails (>= 5.0, < 6.2)
       rdf
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-proxy (0.7.4)
       rack
     rack-test (2.0.2)