diff --git a/Gemfile.lock b/Gemfile.lock
index a90524c7..e7b213da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -236,7 +236,7 @@ GEM
       rainbow
       rubocop (>= 1.0)
       sysexits (~> 1.1)
-    hashdiff (1.0.1)
+    hashdiff (1.2.1)
     hashery (2.1.2)
     hashie (5.1.0)
       logger