diff --git a/Gemfile.lock b/Gemfile.lock
index d132ea1..fa8aeb0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -140,7 +140,7 @@ GEM
       concurrent-ruby (~> 1.0)
       racc (~> 1.7)
     io-console (0.7.2)
-    irb (1.11.2)
+    irb (1.12.0)
       rdoc
       reline (>= 0.4.2)
     jbuilder (2.11.5)