diff --git a/tlpkg/installer/ctan-mirrors.pl b/tlpkg/installer/ctan-mirrors.pl
index a27633a4..9df66181 100644
--- a/tlpkg/installer/ctan-mirrors.pl
+++ b/tlpkg/installer/ctan-mirrors.pl
@@ -69,6 +69,9 @@
       'https://mirror.easyname.at/ctan/' => 1,
       'https://mirror.kumi.systems/ctan/' => 1,
     },
+    'Belarus' => {
+      'https://mirror.datacenter.by/pub/mirrors/CTAN/' => 1,
+    },
     'Czech Republic' => {
       'http://ftp.cvut.cz/tex-archive/' => 1,
       'https://mirrors.nic.cz/tex-archive/' => 1,
@@ -136,7 +139,6 @@
     'Poland' => {
       'https://ctan.gust.org.pl/tex-archive/' => 1,
       'https://polish-mirror.evolution-host.com/ctan/' => 1,
-      'https://sunsite.icm.edu.pl/pub/CTAN/' => 1,
     },
     'Portugal' => {
       'https://ftp.eq.uc.pt/software/TeX/' => 1,