diff --git a/Gemfile.lock b/Gemfile.lock
index 4496a4f5d..a2d8fe8c1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -538,7 +538,7 @@ GEM
     random_name_generator (2.0.1)
     rdf (3.2.9)
       link_header (~> 0.0, >= 0.0.8)
-    rdf-normalize (0.5.0)
+    rdf-normalize (0.5.1)
       rdf (~> 3.2)
     redcarpet (3.5.1)
     redis (4.5.1)