diff --git a/README.md b/README.md
index 1bf7bdd..20285b4 100644
--- a/README.md
+++ b/README.md
@@ -22,9 +22,9 @@ By using this repository and course, you acknowledge and agree that:
 
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-# Today's Tutorial [October 14, 2026]
-## Lesson 325: Hacking Bits Course (Chapter 3: The Hexadecimal Number System)
-This chapter covers the basics of the hexadecimal number system.
+# Today's Tutorial [October 15, 2026]
+## Lesson 326: Hacking Bits Course (Chapter 4: The ATmega328P Architecture)
+This chapter covers the basics of the ATmega328P Architecture.
 
 -> Click [HERE](https://github.com/mytechnotalent/Hacking-Bits/blob/main/hacking-bits.pdf) to read the FREE pdf book.