diff --git a/srcpkgs/python-ecdsa/template b/srcpkgs/python-ecdsa/template
index e59c046ba8..6de6b509fc 100644
--- a/srcpkgs/python-ecdsa/template
+++ b/srcpkgs/python-ecdsa/template
@@ -1,38 +1,39 @@
 # Template file for 'python-ecdsa'
 pkgname=python-ecdsa
-version=0.11
+version=0.13
 revision=1
 noarch=yes
 wrksrc="${pkgname/python-/}-${version}"
 build_style=python-module
 python_versions="2.7 3.4"
 hostmakedepends="python-setuptools python3.4-setuptools"
-makedepends="python-devel python3.4-devel"
-depends="python"
+depends="python-six"
 pycompile_module="ecdsa"
 short_desc="Implementation of ECDSA in Python2"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="https://github.com/warner/python-ecdsa/"
 license="MIT"
-distfiles="https://pypi.python.org/packages/source/e/ecdsa/ecdsa-${version}.tar.gz"
-checksum=8e3b6c193f91dc94b2f3b0261e3eabbdc604f78ff99fdad324a56fdd0b5e958c
+distfiles="${PYPI_SITE}/e/ecdsa/ecdsa-${version}.tar.gz"
+checksum=64cf1ee26d1cde3c73c6d7d107f835fed7c6a2904aef9eac223d57ad800c43fa
 
-pre_install() {
-	sed -i 's,#! /usr/bin/env python,&3.4,' build-3.4/lib/ecdsa/*.py
+pre_build() {
+	# use system six
+	find . -type f -name '*.py' -exec sed -i 's/from \(ecdsa\|\)\.six/from six/g' {} +
+	rm -f ecdsa/six.py
 }
-
 post_install() {
-	vinstall LICENSE 644 usr/share/licenses/${pkgname}
+	vlicense LICENSE
 }
 
 python3.4-ecdsa_package() {
 	noarch=yes
-	depends="python3.4"
+	depends="python3.4-six"
 	pycompile_version="3.4"
 	pycompile_module="ecdsa"
 	short_desc="${short_desc/Python2/Python3.4}"
 	pkg_install() {
 		vmove usr/lib/python3.4
-		vinstall ${wrksrc}/LICENSE 644 usr/share/licenses/${pkgname}
+		vlicense ${wrksrc}/LICENSE
+		find ${PKGDESTDIR} -type f -name '*.py' -exec sed -i 's,#! /usr/bin/env python,&3.4,' {} +
 	}
 }