diff --git a/README.md b/README.md
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-# Today's Tutorial [April 21, 2026]
-## Lesson 166: ARM-64 Course (Part 3 - "Hello World")
-In this lesson we will discuss how to write and compile a simple hello world program in C++.
+# Today's Tutorial [April 22, 2026]
+## Lesson 167: ARM-64 Course (Part 4 - Debugging "Hello World")
+In this lesson we will debug our simple hello world program.
 
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