diff --git a/Gemfile.lock b/Gemfile.lock
index c891c5b..de239b3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,7 +84,7 @@ GEM
     simplecov-cobertura (2.1.0)
       rexml
       simplecov (~> 0.19)
-    simplecov-html (0.12.3)
+    simplecov-html (0.13.1)
     simplecov_json_formatter (0.1.4)
     unicode-display_width (2.6.0)
     yard (0.9.37)