diff --git a/dev-python/mnemonic/mnemonic-0.19.ebuild b/dev-python/mnemonic/mnemonic-0.19.ebuild
index a22af499e5..5e99002c58 100644
--- a/dev-python/mnemonic/mnemonic-0.19.ebuild
+++ b/dev-python/mnemonic/mnemonic-0.19.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=7
 
-PYTHON_COMPAT=( python3_{7,8} )
+PYTHON_COMPAT=( python3_{7,8,9} )
 inherit distutils-r1
 
 DESCRIPTION="Reference implementation of BIP-0039 for generating deterministic keys"