diff --git a/Gemfile.lock b/Gemfile.lock
index dade08c..2235315 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,7 +152,7 @@ GEM
       coercible (~> 1.0)
       descendants_tracker (~> 0.0, >= 0.0.3)
       equalizer (~> 0.0, >= 0.0.9)
-    yard (0.9.12)
+    yard (0.9.20)
 
 PLATFORMS
   ruby