diff --git a/ruby/Gemfile.lock b/ruby/Gemfile.lock
index 9cd64edb..7f80f6bf 100644
--- a/ruby/Gemfile.lock
+++ b/ruby/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     benchmark (0.5.0)
     bigdecimal (4.0.1)
     builder (3.3.0)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     diff-lcs (1.6.2)
     docile (1.4.1)