diff --git a/security/py-nassl/Makefile b/security/py-nassl/Makefile
index d63e9bd83305..8f3df0e91a0d 100644
--- a/security/py-nassl/Makefile
+++ b/security/py-nassl/Makefile
@@ -1,26 +1,30 @@
 PORTNAME=	nassl
 PORTVERSION=	5.0.1
 CATEGORIES=	security python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Experimental OpenSSL wrapper for SSLyze
 WWW=		https://github.com/nabla-c0d3/nassl
 
 LICENSE=	AGPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
+# Upstream bug https://github.com/nabla-c0d3/nassl/issues/110
+BROKEN_SSL=	openssl30 openssl31
+BROKEN_SSL_REASON=	Fails to detect OpenSSL 3.0.0 libcrypt.so
+
 USES=		python:3.7+ ssl
 USE_PYTHON=	autoplist concurrent distutils
 
 GH_ACCOUNT=	nabla-c0d3
 USE_GITHUB=	yes
 
 post-patch:
 	@${RM} ${WRKSRC}/build_tasks.py ${WRKSRC}/tasks.py ${WRKSRC}/nassl/legacy_ssl_client.py
 	@${REINPLACE_CMD} -e 's|%%OPENSSLINC%%|${OPENSSLINC}|; s|%%OPENSSLLIB%%|${OPENSSLLIB}|' ${WRKSRC}/setup.py
 
 post-install:
 	${FIND} ${STAGEDIR}${PYTHON_SITELIBDIR} -name '*.so' -exec ${STRIP_CMD} {} +
 
 .include <bsd.port.mk>