diff --git a/Gemfile.lock b/Gemfile.lock
index a33f04a..f27f9e4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -179,7 +179,7 @@ GEM
       prettyprint
     prettyprint (0.2.0)
     prism (1.9.0)
-    psych (5.3.1)
+    psych (5.4.0)
       date
       stringio
     puma (8.0.2)
@@ -430,7 +430,7 @@ CHECKSUMS
   pp (0.6.3) sha256=2951d514450b93ccfeb1df7d021cae0da16e0a7f95ee1e2273719669d0ab9df6
   prettyprint (0.2.0) sha256=2bc9e15581a94742064a3cc8b0fb9d45aae3d03a1baa6ef80922627a0766f193
   prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
-  psych (5.3.1) sha256=eb7a57cef10c9d70173ff74e739d843ac3b2c019a003de48447b2963d81b1974
+  psych (5.4.0) sha256=14f72d69a611af663d7d70e4a7b67d9eb1f3ae9f8d916b478961d5a0075ba5b7
   puma (8.0.2) sha256=c8ed871dfbbe66448ea9ffd46692342d9804d4071522b52b5331b7b6e7b686fb
   racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
   rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2