diff --git a/source-builder/config/gcc-4.9-1.cfg b/source-builder/config/gcc-4.9-1.cfg
index 25e4247..1141c84 100644
--- a/source-builder/config/gcc-4.9-1.cfg
+++ b/source-builder/config/gcc-4.9-1.cfg
@@ -21,9 +21,9 @@
 #
 # Packages GCC requires
 #
-%source set mpfr http://www.mpfr.org/mpfr-%{mpfr_version}/mpfr-%{mpfr_version}.tar.bz2
-%source set mpc http://www.multiprecision.org/mpc/download/mpc-%{mpc_version}.tar.gz
+%source set mpc https://ftp.gnu.org/gnu/mpc/mpc-%{mpc_version}.tar.gz
 %source set gmp https://ftp.gnu.org/gnu/gmp/gmp-%{gmp_version}.tar.bz2
+%source set mpfr https://ftp.gnu.org/gnu/mpfr/mpfr-%{mpfr_version}.tar.bz2
 
 #
 # GCC Common build script.