diff --git a/Gemfile.lock b/Gemfile.lock
index 92ff612..32a842f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -24,7 +24,7 @@ GEM
     coffee-script-source (1.11.1)
     colorator (1.1.0)
     commonmarker (0.23.11)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     dnsruby (1.73.1)
       base64 (>= 0.2)