diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 5ce2028..dc62b6f 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -2,7 +2,8 @@
 
 ### Bug Fixes
 
-- Fix numpy failing to import in the Windows installer due to missing `libopenblas` DLL path — generate `_distributor_init_local.py` at build time and call `os.add_dll_directory()` at runtime ([456eb3a](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/456eb3a))
+- Fix numpy failing to import in the Windows installer — preserve required numpy submodules (`lib`, `linalg`, `ma`, `polynomial`, `fft`, `ctypeslib`, `matrixlib`) during build cleanup ([68614c9](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/68614c9))
+- Fix numpy failing to locate `libopenblas` DLL in the Windows installer — generate `_distributor_init_local.py` at build time and call `os.add_dll_directory()` at runtime ([456eb3a](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/456eb3a))
 - Fix visualizer toggle button not reflecting actual availability after audio device load ([ee51849](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/ee51849))
 - Fix visualizer WebSocket re-subscription firing before availability is confirmed from the API — moved from `connectWebSocket` to `loadAudioDevices` ([ee51849](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/ee51849))
 
@@ -23,6 +24,7 @@
 
 | Hash | Message | Author |
 |------|---------|--------|
+| [68614c9](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/68614c9) | fix(windows): keep required numpy submodules in build cleanup | alexei.dolgolyov |
 | [456eb3a](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/456eb3a) | fix(windows): fix numpy DLL loading in embedded Python distribution | alexei.dolgolyov |
 | [ee51849](https://git.dolgolyov-family.by/alexei.dolgolyov/media-player-server/commit/ee51849) | fix(visualizer): sync state and re-subscribe from audio device load | alexei.dolgolyov |