diff --git a/Gemfile.lock b/Gemfile.lock
index 8d4fa65..ac1a247 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -82,7 +82,7 @@ GEM
     rbs-inline (0.12.0)
       prism (>= 0.29)
       rbs (>= 3.8.0)
-    rdoc (7.0.3)
+    rdoc (7.1.0)
       erb
       psych (>= 4.0.0)
       tsort