diff --git a/bin/ruby-build b/bin/ruby-build
index f869f8591d..9d9d33a37f 100755
--- a/bin/ruby-build
+++ b/bin/ruby-build
@@ -14,7 +14,7 @@
 #   --version        Show version of ruby-build
 #
 
-RUBY_BUILD_VERSION="20210309"
+RUBY_BUILD_VERSION="20210405"
 
 OLDIFS="$IFS"