diff --git a/Gemfile.lock b/Gemfile.lock
index 73f1a35b..9b8d4f07 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,7 +136,7 @@ GEM
       racc (~> 1.4)
     openapi3_parser (0.9.2)
       commonmarker (~> 0.17)
-    ostruct (0.5.5)
+    ostruct (0.6.0)
     padrino-helpers (0.15.3)
       i18n (>= 0.6.7, < 2)
       padrino-support (= 0.15.3)