diff --git a/Gemfile.lock b/Gemfile.lock
index e0ee1c2..42a8da5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -89,9 +89,9 @@ GEM
     childprocess (4.1.0)
     concurrent-ruby (1.1.10)
     crass (1.0.6)
-    debug (1.5.0)
+    debug (1.6.1)
       irb (>= 1.3.6)
-      reline (>= 0.2.7)
+      reline (>= 0.3.1)
     diff-lcs (1.5.0)
     digest (3.1.0)
     erubi (1.10.0)