diff --git a/Gemfile.lock b/Gemfile.lock
index 36f3b7b..1d91719 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
     ast (2.4.2)
     benchmark-ips (2.13.0)
     bigdecimal (3.1.7)
-    concurrent-ruby (1.2.3)
+    concurrent-ruby (1.3.4)
     diff-lcs (1.5.1)
     docile (1.4.0)
     dry-core (1.0.1)