diff --git a/Gemfile.lock b/Gemfile.lock
index 24f185f..caa133d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
-    rake (10.0.4)
+    rake (13.0.1)
     simplecov (0.4.2)
       simplecov-html (~> 0.4.4)
     simplecov-html (0.4.5)