diff --git a/assign9.md b/assign9.md
index c4533c1826393699f521fcb60dae05432af26c1b..4fbe0c8dd33ece063facaf19d053d1ae9ec33a1d 100644
--- a/assign9.md
+++ b/assign9.md
@@ -1,5 +1,5 @@
 ## Assignment 9: Spark
-### Due Dec 8, 2023, 11:59PM
+### Due Dec 10, 2023, 11:59PM
 
 Assignment 9 focuses on using Apache Spark for doing large-scale data analysis
 tasks. For this assignment, we will use relatively small datasets and we won't