diff --git a/dev-util/catalyst/catalyst-4.0_rc1.ebuild b/dev-util/catalyst/catalyst-4.0_rc1.ebuild
index 9bf921904e914..7bc3d781337b6 100644
--- a/dev-util/catalyst/catalyst-4.0_rc1.ebuild
+++ b/dev-util/catalyst/catalyst-4.0_rc1.ebuild
@@ -15,7 +15,7 @@ else
 	S="${WORKDIR}/${MY_P/_/-}"
 fi
 
-PYTHON_COMPAT=( python3_{9..11} )
+PYTHON_COMPAT=( python3_{9..12} )
 DISTUTILS_USE_PEP517=setuptools
 
 inherit distutils-r1 linux-info optfeature tmpfiles ${SRC_ECLASS}
diff --git a/dev-util/catalyst/catalyst-9999.ebuild b/dev-util/catalyst/catalyst-9999.ebuild
index c5bd9ff2d0419..541b54e2bacc1 100644
--- a/dev-util/catalyst/catalyst-9999.ebuild
+++ b/dev-util/catalyst/catalyst-9999.ebuild
@@ -12,7 +12,7 @@ else
 	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
 fi
 
-PYTHON_COMPAT=( python3_{9..11} )
+PYTHON_COMPAT=( python3_{9..12} )
 DISTUTILS_USE_PEP517=setuptools
 
 inherit distutils-r1 linux-info optfeature tmpfiles ${SRC_ECLASS}