diff --git a/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-3.0.0.ebuild b/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-3.0.0.ebuild
index caa17bd..998bcf8 100644
--- a/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-3.0.0.ebuild
+++ b/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-3.0.0.ebuild
@@ -4,7 +4,7 @@
 EAPI=8
 
 DISTUTILS_USE_PEP517=setuptools
-PYTHON_COMPAT=( python3_{9..10} )
+PYTHON_COMPAT=( python3_{9..11} )
 
 inherit distutils-r1