diff --git a/Gemfile.lock b/Gemfile.lock
index b600460..0481522 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
       kramdown (~> 2.0)
     method_source (1.0.0)
     mini_portile2 (2.8.2)
-    minitest (5.18.0)
+    minitest (5.18.1)
     minitest-hooks (1.5.0)
       minitest (> 5.3)
     nio4r (2.5.9)