diff --git a/time/py-icalendar/Makefile b/time/py-icalendar/Makefile
index 503c729bbbde6..edbd8743ce5c1 100644
--- a/time/py-icalendar/Makefile
+++ b/time/py-icalendar/Makefile
@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.18 2014/06/09 12:29:23 wiz Exp $
+# $NetBSD: Makefile,v 1.19 2014/07/22 09:57:15 wiz Exp $
 
-DISTNAME=	icalendar-3.7
+DISTNAME=	icalendar-3.8.1
 PKGNAME=	${PYPKGPREFIX}-${DISTNAME}
 CATEGORIES=	time python
 MASTER_SITES=	http://pypi.python.org/packages/source/i/icalendar/
@@ -16,6 +16,12 @@ PYTHON_VERSIONED_DEPENDENCIES=  dateutil
 
 USE_LANGUAGES=	# empty
 
+# backup files in 3.8.1 distfile that are installed -- delete them before that happens
+# https://github.com/collective/icalendar/issues/144
+post-extract:
+	${RM} ${WRKSRC}/src/icalendar/tests/test_unit_cal.py~
+	${RM} ${WRKSRC}/src/icalendar/tests/test_fixed_issues.py~
+
 .include "../../lang/python/egg.mk"
 .include "../../lang/python/versioned_dependencies.mk"
 .include "../../mk/bsd.pkg.mk"
diff --git a/time/py-icalendar/distinfo b/time/py-icalendar/distinfo
index 1c22a1484d236..2d38b0a780bee 100644
--- a/time/py-icalendar/distinfo
+++ b/time/py-icalendar/distinfo
@@ -1,5 +1,5 @@
-$NetBSD: distinfo,v 1.11 2014/06/09 12:29:23 wiz Exp $
+$NetBSD: distinfo,v 1.12 2014/07/22 09:57:15 wiz Exp $
 
-SHA1 (icalendar-3.7.tar.gz) = dbaf8406534f7b218aee3e33e900361196d563f8
-RMD160 (icalendar-3.7.tar.gz) = d6d06f1f59d1c4898029e6d53380c14b062ca2fb
-Size (icalendar-3.7.tar.gz) = 63205 bytes
+SHA1 (icalendar-3.8.1.tar.gz) = 55b7c50bd272107caef58cb75ef4cc51e14b3dfa
+RMD160 (icalendar-3.8.1.tar.gz) = 88d8223c978eb46c63a67a90de8f08a2a36903d0
+Size (icalendar-3.8.1.tar.gz) = 68294 bytes