diff --git a/certs/Makefile b/certs/Makefile
index b0f029ab..c9a33798 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -16,7 +16,7 @@ DOMAINS_DUAL = \
 	gitlab.com/USERTrust-RSA-Certification-Authority \
 	lists.blocklist.de/GTS-Root-R4 \
 	matrix.org/GTS-Root-R4 \
-	raw.githubusercontent.com/USERTrust-RSA-Certification-Authority \
+	raw.githubusercontent.com/ISRG-Root-X1 \
 	rsc.eworm.de/Root-YE \
 	upgrade.mikrotik.com/ISRG-Root-X1
 DOMAINS_IPV4 = \
diff --git a/global-config.rsc b/global-config.rsc
index e8a86aac..1425764c 100644
--- a/global-config.rsc
+++ b/global-config.rsc
@@ -115,7 +115,7 @@
 #      cert="Root YE" };
     { url="https://raw.githubusercontent.com/stamparm/ipsum/refs/heads/master/levels/4.txt";
 #     # higher level (decrease the numerical value) for more addresses, and vice versa
-      cert="USERTrust RSA Certification Authority" };
+      cert="ISRG Root X1" };
     { url="https://www.dshield.org/block.txt"; cidr="/24";
       cert="GTS Root R4" };
     { url="https://lists.blocklist.de/lists/strongips.txt";