diff --git a/changelog/v2.1.2.md b/changelog/v2.1.2.md
index 01685bc..7235db0 100644
--- a/changelog/v2.1.2.md
+++ b/changelog/v2.1.2.md
@@ -2,4 +2,3 @@
 
 * Fixes [superfences bug](https://github.com/neatc0der/mkdocs-markmap/issues/19)
 * Updates distribute workflow
-
diff --git a/changelog/v2.1.3.md b/changelog/v2.1.3.md
new file mode 100644
index 0000000..da9f572
--- /dev/null
+++ b/changelog/v2.1.3.md
@@ -0,0 +1,3 @@
+# v2.1.3
+
+* Fixes [superfences 9.0 bug](https://github.com/neatc0der/mkdocs-markmap/issues/27)
diff --git a/mkdocs_markmap/__meta__.py b/mkdocs_markmap/__meta__.py
index 75315d4..6d976cc 100644
--- a/mkdocs_markmap/__meta__.py
+++ b/mkdocs_markmap/__meta__.py
@@ -1,6 +1,6 @@
 PACKAGE_NAME = 'mkdocs_markmap'
 PROJECT_NAME = PACKAGE_NAME.replace('_', '-')
-PROJECT_VERSION = '2.1.2'
+PROJECT_VERSION = '2.1.3'
 
 OWNER = 'neatc0der'
 REPOSITORY_NAME = f'{OWNER}/{PROJECT_NAME}'
diff --git a/mkdocs_markmap/extension.py b/mkdocs_markmap/extension.py
index 6a28274..2e464cf 100644
--- a/mkdocs_markmap/extension.py
+++ b/mkdocs_markmap/extension.py
@@ -94,17 +94,18 @@ def extendMarkdown(self, md: Markdown, md_globals: Dict[str, str]) -> None:
         md.preprocessors.register(MarkmapPreprocessor(md, self.getConfigs()), 'include_markmap', 102)
         for extension in md.registeredExtensions:
             if extension.__class__.__name__ == 'SuperFencesCodeExtension':
+                log.info(f'superfences detected by markmap')
                 try:
                     from pymdownx.superfences import default_validator, fence_code_format, _formatter, _validator
                     extension.extend_super_fences(
                         'markmap',
                         partial(_formatter, class_name='language-markmap', _fmt=fence_code_format),
-                        partial(_validator, validator=default_validator, _legacy=False)
+                        partial(_validator, validator=default_validator)
                     )
                     break
 
                 except ImportError as e:
-                    log.warning(f'detected pymdownx.superfences, but import is not working: {e}')
+                    log.warning(f'markmap detected pymdownx.superfences, but import is not working: {e}')
 
                 except Exception as e:
                     log.error(f'unexpected error: {e}')