diff --git a/Gemfile.lock b/Gemfile.lock
index e119910..7324e67 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,7 +5,7 @@ GEM
     minitest (5.11.3)
     mocha (1.8.0)
       metaclass (~> 0.0.1)
-    yard (0.9.20)
+    yard (0.9.36)
 
 PLATFORMS
   ruby