diff --git a/Gemfile.lock b/Gemfile.lock
index 67a95ff..b65db2e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,7 +136,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     rchardet (1.8.0)
-    rdf (3.2.11)
+    rdf (3.2.12)
       link_header (~> 0.0, >= 0.0.8)
     rdf-aggregate-repo (3.2.1)
       rdf (~> 3.2)