diff --git a/Gemfile.lock b/Gemfile.lock
index be6e78f..e99ad8c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
     rubocop-sequel (0.3.3)
       rubocop (~> 1.0)
     ruby-progressbar (1.11.0)
-    sequel (5.55.0)
+    sequel (5.56.0)
     sqlite3 (1.4.2)
     test-unit (3.5.3)
       power_assert