diff --git a/Gemfile.lock b/Gemfile.lock
index 9971c56..424764f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
       tzinfo (~> 2.0, >= 2.0.5)
     base64 (0.2.0)
     bigdecimal (3.1.8)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.7)
     connection_pool (2.4.1)
     drb (2.2.1)
     i18n (1.14.5)