diff --git a/Gemfile.lock b/Gemfile.lock
index cc262f8e1..9b78ca733 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -220,7 +220,7 @@ GEM
       database_cleaner-core (~> 2.0.0)
     database_cleaner-core (2.0.1)
     date (3.3.4)
-    debug (1.9.0)
+    debug (1.9.1)
       irb (~> 1.10)
       reline (>= 0.3.8)
     debug_inspector (1.1.0)