diff --git a/Gemfile.lock b/Gemfile.lock
index 57d4c2c..38ba082 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
       rack
     rack-test (0.7.0)
       rack (>= 1.0, < 3)
-    rake (12.2.1)
+    rake (12.3.3)
     rdf (3.0.1)
       hamster (~> 3.0)
       link_header (~> 0.0, >= 0.0.8)