diff --git a/2025_spring/readme.md b/2025_spring/readme.md
index 8593dca..52417a6 100644
--- a/2025_spring/readme.md
+++ b/2025_spring/readme.md
@@ -46,7 +46,7 @@ This course is suitable for research concerning non-numerical data, which is wid
 
 - **Computation**
 
-  Mar. 17 to Mar. 21.
+  Mar. 17 to Mar. 24.
 
   Class hours: 13:00 to 16:00.