diff --git a/libertree-backend-rb/Gemfile.lock b/libertree-backend-rb/Gemfile.lock
index a1b31a00..22db018a 100644
--- a/libertree-backend-rb/Gemfile.lock
+++ b/libertree-backend-rb/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
     parkdown (1.4.25)
     pg (0.17.1)
     polyglot (0.3.3)
-    rake (10.1.1)
+    rake (13.0.1)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)