diff --git a/Gemfile.lock b/Gemfile.lock
index 4b964b8..4695a70 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     base64 (0.3.0)
     bigdecimal (4.1.2)
     cgi (0.5.1)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     dotenv (3.2.0)
     drb (2.2.3)