diff --git a/flash/FLASH.md b/flash/FLASH.md
index 51b4bf1..2e83e92 100644
--- a/flash/FLASH.md
+++ b/flash/FLASH.md
@@ -1,7 +1,7 @@
 # 1. A MicroPython Flash memory driver
 
-This driver supports the Cypress S25FL256L and S25FL128L chips, providing 64MiB
-and 32MiB respectively. These have 100K cycles of write endurance (compared to
+This driver supports the Cypress S25FL256L and S25FL128L chips, providing 32MiB
+and 16MiB respectively. These have 100K cycles of write endurance (compared to
 10K for Pyboard Flash memory). These were the largest capacity available with a
 sector size small enough for microcontroller use.