diff --git a/docs/genrelnotes.py b/docs/genrelnotes.py
index 0d9f60da5..6873019b6 100755
--- a/docs/genrelnotes.py
+++ b/docs/genrelnotes.py
@@ -49,7 +49,10 @@ def add_to_sitemap(sitemap, output_sitemap):
                 m = re.match(r'[\s]*Release-notes-for-([0-9]+)\.([0-9]+)\.([0-9]+)\.md', line)
                 if m:
                     from_version = f'{m[1]}.{m[2]}.{m[3]}'
-                    to_version = f'{m[1]}.{int(m[2]) + 1}.{m[3]}'
+                    if from_version == '0.64.0':
+                        to_version = '1.0.0'
+                    else:
+                        to_version = f'{m[1]}.{int(m[2]) + 1}.{m[3]}'
                     new_line = line.replace(from_version, to_version)
                     relnotes = new_line.strip()
                     s_f.write(new_line)