diff --git a/m426/README.md b/m426/README.md
index 2608420..ea67ea0 100644
--- a/m426/README.md
+++ b/m426/README.md
@@ -30,7 +30,7 @@
 
 # Modulablauf
 
-## Themenplan (AP22b) Montag Nachmittag
+## Themenplan (AP23b) Montag Nachmittag
 
 
 | ~Tag | Datum     | Thema        |