diff --git a/subjects/java/piscine/Cat/README.md b/subjects/java/piscine/Cat/README.md
index 5359d1894..32ecf3126 100644
--- a/subjects/java/piscine/Cat/README.md
+++ b/subjects/java/piscine/Cat/README.md
@@ -71,6 +71,6 @@ $
 ### Notions
 
 [Command-Line Arguments](https://docs.oracle.com/javase/tutorial/essential/environment/cmdLineArgs.html)
-[File](https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/nio/file/Files.html)
-[Standard Output](https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/PrintStream.html)
-[IOException](https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/IOException.html)
+[File](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/nio/file/Files.html)
+[Standard Output](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/PrintStream.html)
+[IOException](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/IOException.html)