diff --git a/packages.ent b/packages.ent
index c3c27eea0..4d5f410e9 100644
--- a/packages.ent
+++ b/packages.ent
@@ -293,7 +293,7 @@
 
 <!ENTITY grub-version "2.12">
 <!ENTITY grub-size "6,524 KB">
-<!ENTITY grub-url "https://ftp.gnu.org/gnu/grub/grub-&grub-version;.tar.xz">
+<!ENTITY grub-url "&gnu;grub/grub-&grub-version;.tar.xz">
 <!ENTITY grub-md5 "60c564b1bdc39d8e43b3aab4bc0fb140">
 <!ENTITY grub-home "&gnu-software;grub/">
 <!ENTITY grub-fin-du "166 MB">
@@ -506,7 +506,7 @@
 
 <!ENTITY mpc-version "1.3.1">
 <!ENTITY mpc-size "756 KB">
-<!ENTITY mpc-url "https://ftp.gnu.org/gnu/mpc/mpc-&mpc-version;.tar.gz">
+<!ENTITY mpc-url "&gnu;mpc/mpc-&mpc-version;.tar.gz">
 <!ENTITY mpc-md5 "5c9bc658c9fd0f940e8e3e0f09530c62">
 <!ENTITY mpc-home "https://www.multiprecision.org/">
 <!ENTITY mpc-fin-du "22 MB">
@@ -514,7 +514,7 @@
 
 <!ENTITY mpfr-version "4.2.2">
 <!ENTITY mpfr-size "1,471 KB">
-<!ENTITY mpfr-url "https://ftp.gnu.org/gnu/mpfr/mpfr-&mpfr-version;.tar.xz">
+<!ENTITY mpfr-url "&gnu;mpfr/mpfr-&mpfr-version;.tar.xz">
 <!ENTITY mpfr-md5 "7c32c39b8b6e3ae85f25156228156061">
 <!ENTITY mpfr-home "https://www.mpfr.org/">
 <!ENTITY mpfr-fin-du "43 MB">