diff --git a/.github/scripts/gen-test-certs.sh b/.github/scripts/gen-test-certs.sh
index c5f495e9..c989ce62 100755
--- a/.github/scripts/gen-test-certs.sh
+++ b/.github/scripts/gen-test-certs.sh
@@ -46,13 +46,12 @@ cat > ./tls/openssl.cnf <<_END_
 [ server_cert ]
 keyUsage = digitalSignature, keyEncipherment
 nsCertType = server
-subjectAltName = DNS:localhost
 [ client_cert ]
 keyUsage = digitalSignature, keyEncipherment
 nsCertType = client
 _END_
 
-generate_cert server "Server-only" "-extfile ./tls/openssl.cnf -extensions server_cert"
+generate_cert server "localhost" "-extfile ./tls/openssl.cnf -extensions server_cert"
 generate_cert client "Client-only" "-extfile ./tls/openssl.cnf -extensions client_cert"
 generate_cert redis "Generic-cert"