diff --git a/python-3.7.6-0.build.sh b/python-3.7.6-0.build.sh
index 78ea19a..dabe6f0 100755
--- a/python-3.7.6-0.build.sh
+++ b/python-3.7.6-0.build.sh
@@ -247,7 +247,9 @@ pip3 install --prefix=$PREFIX multiqc
 	PKGCFLAGS="-O2 -fPIC"
 
 	cd $BUILDDIR
-	test -e boost_${BOOST_VERSION[1]}.tar.gz || wget $BOOST_SRC
+	# 28.03.2020: upstream server currently broken - use cached archive
+	#test -e boost_${BOOST_VERSION[1]}.tar.gz || wget $BOOST_SRC
+	test -e boost_${BOOST_VERSION[1]}.tar.gz || cp /src/mariux/beeroot/downloads/boost_${BOOST_VERSION[1]}.tar.gz .
 	test -d boost-${BOOST_VERSION[0]} || mkdir boost-${BOOST_VERSION[0]} && tar -xf boost_${BOOST_VERSION[1]}.tar.gz -C boost-${BOOST_VERSION[0]} --strip-components=1
 
 	cd boost-${BOOST_VERSION[0]}