diff --git a/dev-R/Matrix/Matrix-1.3.4.ebuild b/dev-R/Matrix/Matrix-1.3.4.ebuild
index dc3e9e8cc1..43162e67cf 100644
--- a/dev-R/Matrix/Matrix-1.3.4.ebuild
+++ b/dev-R/Matrix/Matrix-1.3.4.ebuild
@@ -9,7 +9,7 @@ inherit R-packages
 
 DESCRIPTION='Sparse and Dense Matrix Classes and Methods'
 KEYWORDS="~amd64"
-SRC_URI="https://cran.r-project.org/src/contrib/${PN}_${MYPV}.tar.gz"
+SRC_URI="mirror://cran/src/contrib/${PN}_${MYPV}.tar.gz"
 LICENSE='GPL-2+'
 
 DEPEND="