diff --git a/CHANGELOG.md b/CHANGELOG.md
index d555e4bf..1dc0e1cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [4.66.1](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.66.0...v4.66.1) (2025-10-22)
+
+
+### Bug Fixes
+
+* **complement-race:** ensure continuous position broadcasting during train movement ([df60824](https://github.com/antialias/soroban-abacus-flashcards/commit/df60824f37f52e77e69d32c26926a24e1af88e66))
+
 ## [4.66.0](https://github.com/antialias/soroban-abacus-flashcards/compare/v4.65.1...v4.66.0) (2025-10-22)
 
 
diff --git a/package.json b/package.json
index 458c9e3a..18e08d6b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "soroban-monorepo",
-  "version": "4.66.0",
+  "version": "4.66.1",
   "private": true,
   "description": "Beautiful Soroban Flashcard Generator - Monorepo",
   "workspaces": [