diff --git a/Gemfile.lock b/Gemfile.lock
index 872f53e..d9bfddf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,7 +12,7 @@ GEM
     coffee-script-source (1.12.2)
     colorator (1.1.0)
     commonmarker (0.23.12)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     csv (3.3.5)
     dnsruby (1.73.1)
       base64 (>= 0.2)