diff --git a/ext/psych/lib/psych/versions.rb b/ext/psych/lib/psych/versions.rb
index a9b112124d..abaa241de5 100644
--- a/ext/psych/lib/psych/versions.rb
+++ b/ext/psych/lib/psych/versions.rb
@@ -2,7 +2,7 @@
 
 module Psych
   # The version of Psych you are using
-  VERSION = '5.2.0'
+  VERSION = '5.2.1'
 
   if RUBY_ENGINE == 'jruby'
     DEFAULT_SNAKEYAML_VERSION = '2.7'.freeze