diff --git a/Gemfile.lock b/Gemfile.lock
index 518a893..14300e2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -227,7 +227,8 @@ GEM
     popper_js (2.11.8)
     postgresql_cursor (0.6.9)
       activerecord (>= 6.0)
-    psych (5.2.0)
+    psych (5.2.1)
+      date
       stringio
     public_suffix (6.0.1)
     puma (6.5.0)