diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7be9853f..236bec2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Version History
 
+## Release v2.4.21
+* Add CPython 3.13.1t by @makukha in https://github.com/pyenv/pyenv/pull/3120
+* Prefer tcl-tk@8 from Homebrew due to release of Tcl/Tk 9 with which only 3.12+ are compatible by @native-api in https://github.com/pyenv/pyenv/pull/3118
+
 ## Release v2.4.20
 * README: Fix Markdown in "Notes about python releases" by @noelleleigh in https://github.com/pyenv/pyenv/pull/3112
 * README: correct link to shell setup instructions by @shortcuts in https://github.com/pyenv/pyenv/pull/3113
diff --git a/libexec/pyenv---version b/libexec/pyenv---version
index 76a26620..e6c0cb8b 100755
--- a/libexec/pyenv---version
+++ b/libexec/pyenv---version
@@ -12,7 +12,7 @@
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
 
-version="2.4.20"
+version="2.4.21"
 git_revision=""
 
 if cd "${BASH_SOURCE%/*}" 2>/dev/null && git remote -v 2>/dev/null | grep -q pyenv; then