diff --git a/units/en/unit0/introduction.mdx b/units/en/unit0/introduction.mdx
index 07c60fa..e876cf7 100644
--- a/units/en/unit0/introduction.mdx
+++ b/units/en/unit0/introduction.mdx
@@ -59,8 +59,8 @@ This is the course's syllabus:
 
 You can choose to follow this course either:
 
-- *To get a certificate of completion*: you need to complete 80% of the assignments before the end of July 2023.
-- *To get a certificate of honors*: you need to complete 100% of the assignments before the end of July 2023.
+- *To get a certificate of completion*: you need to complete 80% of the assignments before the end of September 2023.
+- *To get a certificate of honors*: you need to complete 100% of the assignments before the end of September 2023.
 - *As a simple audit*: you can participate in all challenges and do assignments if you want, but you have no deadlines.
 
 Both paths **are completely free**.
@@ -72,8 +72,8 @@ You don't need to tell us which path you choose. **If you get more than 80% of t
 
 The certification process is **completely free**:
 
-- *To get a certificate of completion*: you need to complete 80% of the assignments before the end of July 2023.
-- *To get a certificate of honors*: you need to complete 100% of the assignments before the end of July 2023.
+- *To get a certificate of completion*: you need to complete 80% of the assignments before the end of September 2023.
+- *To get a certificate of honors*: you need to complete 100% of the assignments before the end of September 2023.
 
 <img src="https://huggingface.co/datasets/huggingface-deep-rl-course/course-images/resolve/main/en/unit0/certification.jpg" alt="Course certification" width="100%"/>