diff --git a/Gemfile.lock b/Gemfile.lock
index 5ff42c6..ba334cb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -293,7 +293,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.8.2)
+    unf_ext (0.0.9)
     unicode-display_width (1.8.0)
     yell (2.2.2)