diff --git a/Gemfile.lock b/Gemfile.lock
index 2848174..aff9177 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -168,9 +168,8 @@ GEM
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     unicode-display_width (2.4.2)
-    webrick (1.7.0)
-    yard (0.9.28)
-      webrick (~> 1.7.0)
+    webrick (1.9.1)
+    yard (0.9.36)
 
 PLATFORMS
   ruby