diff --git a/dev-python/mkdocs-bootstrap/mkdocs-bootstrap-1.1-r1.ebuild b/dev-python/mkdocs-bootstrap/mkdocs-bootstrap-1.1-r1.ebuild
index a3fcda6eeab07..574981a3abc0b 100644
--- a/dev-python/mkdocs-bootstrap/mkdocs-bootstrap-1.1-r1.ebuild
+++ b/dev-python/mkdocs-bootstrap/mkdocs-bootstrap-1.1-r1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-PYTHON_COMPAT=( python3_{7,8} )
+PYTHON_COMPAT=( python3_{7,8,9} )
 
 DOCS_BUILDER="mkdocs"