diff --git a/Gemfile.lock b/Gemfile.lock
index aeadb9f..56c755a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -660,7 +660,7 @@ GEM
       rails (>= 5.0, < 6.2)
       rdf
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-test (2.0.2)
       rack (>= 1.3)
     rails (5.2.8.1)