diff --git a/scripts/release-notes/generate_release_notes.py b/scripts/release-notes/generate_release_notes.py
index 2392b4348..c92ef3cca 100644
--- a/scripts/release-notes/generate_release_notes.py
+++ b/scripts/release-notes/generate_release_notes.py
@@ -21,7 +21,7 @@ def define_area(msg):
         if msg.startswith(f'[{area}] '):
             return area
 
-    return np.NaN
+    return np.nan
 
 
 def delete_prefix(msg):