diff --git a/Gemfile.lock b/Gemfile.lock
index 33e355a06..f3bd4f332 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,6 +154,7 @@ GEM
       net-http-persistent (~> 4.0)
       nokogiri (~> 1, >= 1.10.8)
     base64 (0.1.1)
+    bcp47_spec (0.2.1)
     bcrypt (3.1.19)
     better_errors (2.10.1)
       erubi (>= 1.0.0)
@@ -596,10 +597,11 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.0.6)
-    rdf (3.2.11)
+    rdf (3.3.1)
+      bcp47_spec (~> 0.2)
       link_header (~> 0.0, >= 0.0.8)
-    rdf-normalize (0.6.1)
-      rdf (~> 3.2)
+    rdf-normalize (0.7.0)
+      rdf (~> 3.3)
     rdoc (6.5.0)
       psych (>= 4.0.0)
     redcarpet (3.6.0)