diff --git a/Gemfile.lock b/Gemfile.lock
index c2c95ca..63836fe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
     ffi2-generators (0.1.1)
     json (1.8.1)
     minitest (5.5.0)
-    rake (10.4.2)
+    rake (13.0.1)
     rake-compiler (0.8.3)
       rake
     rb-readline (0.5.1)