diff --git a/README.md b/README.md
index cd2eaea..c3e3275 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ This repository compiles essential resources for the SPPU Computer Engineering P
 1. [Code-1 (Parallel BFS and DFS)](Codes/Code-1.cpp)
 2. [Code-2 (Sequential and Parallel Bubble Sort and Merge Sort)](Codes/Code-2.cpp)
 3. [Code-3 (Min, Max, Sum, Average)](Codes/Code-3.cpp)
+4. [Code-4 (Vector Addition and Matrix Multiplication)](Codes/Code-4/)
 
 ### Practical