diff --git a/Gemfile.lock b/Gemfile.lock
index 934731c8..c9ea8294 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,7 @@ GEM
     stringio (3.0.8)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (2.4.2)
+    unicode-display_width (2.5.0)
     yard (0.9.34)
 
 PLATFORMS