diff --git a/Gemfile.lock b/Gemfile.lock
index 0d8a8ca..1205ee1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -181,7 +181,8 @@ GEM
     pry (0.15.0)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    psych (5.2.0)
+    psych (5.2.2)
+      date
       stringio
     public_suffix (6.0.1)
     puma (6.4.3)
@@ -227,7 +228,7 @@ GEM
     rake (13.2.1)
     rbs (3.6.1)
       logger
-    rdoc (6.7.0)
+    rdoc (6.10.0)
       psych (>= 4.0.0)
     regexp_parser (2.9.2)
     reline (0.5.11)