diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1dc0e1cf..5630cab6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [4.66.2](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.66.1...v4.66.2) (2025-10-22)
+
+
+### Bug Fixes
+
+* **complement-race:** fix ghost train position update lag and reload position reset ([ad78a65](https://github.com/antialias/soroban-abacus-flashcards/commit/ad78a65ed7f63509602e79246e3761653ea39a15))
+
 ## [4.66.1](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.66.0...v4.66.1) (2025-10-22)
 
 
diff --git a/package.json b/package.json
index 18e08d6b..af1b70ff 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "soroban-monorepo",
-  "version": "4.66.1",
+  "version": "4.66.2",
   "private": true,
   "description": "Beautiful Soroban Flashcard Generator - Monorepo",
   "workspaces": [