--- Makefile.orig	2020-04-01 20:27:40.420528000 +0300
+++ Makefile	2020-04-01 20:28:20.555067000 +0300
@@ -10,8 +10,8 @@
 		https://docs.scipy.org/doc/${PORTNAME}-${PORTVERSION}/:doc
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTFILES=	${DISTNAME}${EXTRACT_SUFX} \
-		${PORTNAME}-ref-${PORTVERSION:R}.1.pdf:doc \
-		${PORTNAME}-user-${PORTVERSION:R}.1.pdf:doc
+		${PORTNAME}-ref-1.16.1.pdf:doc \
+		${PORTNAME}-user-1.16.1.pdf:doc
 EXTRACT_ONLY=	${DISTNAME}${EXTRACT_SUFX}
 
 MAINTAINER=	python@FreeBSD.org
@@ -69,8 +69,8 @@
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
-	${INSTALL_DATA} ${DISTDIR}/${PORTNAME}-ref-${PORTVERSION:R}.1.pdf ${STAGEDIR}${DOCSDIR}
-	${INSTALL_DATA} ${DISTDIR}/${PORTNAME}-user-${PORTVERSION:R}.1.pdf ${STAGEDIR}${DOCSDIR}
+	${INSTALL_DATA} ${DISTDIR}/${PORTNAME}-ref-1.16.1.pdf ${STAGEDIR}${DOCSDIR}
+	${INSTALL_DATA} ${DISTDIR}/${PORTNAME}-user-1.16.1.pdf ${STAGEDIR}${DOCSDIR}
 
 do-test:
 	@cd ${WRKSRC} && ${PYTHON_CMD} runtests.py