diff --git a/Gemfile.lock b/Gemfile.lock
index b9979bd4..dd1aa7fe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -244,7 +244,7 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.2.1)
-    rbs (3.9.1)
+    rbs (3.9.4)
       logger
     rdoc (6.13.0)
       psych (>= 4.0.0)