diff --git a/Gemfile.lock b/Gemfile.lock
index 7b0730e..a4bdb57 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -203,7 +203,8 @@ GEM
     pghero (3.6.1)
       activerecord (>= 6.1)
     popper_js (2.11.8)
-    psych (5.2.0)
+    psych (5.2.1)
+      date
       stringio
     public_suffix (6.0.1)
     puma (6.5.0)