diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index 3d45fa4a..bcfc9366 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -35,8 +35,8 @@ $test_os = [
 $zig = true;
 // temporary!
 if ($zig) {
-    putenv('SPC_LIBC=musl');
-    // putenv('SPC_LIBC_VERSION=2.17');
+    putenv('SPC_LIBC=glibc');
+    putenv('SPC_LIBC_VERSION=2.28');
     putenv('CC=zig-cc');
     putenv('CXX=zig-c++');
     putenv('AR=ar');
@@ -60,7 +60,7 @@ $prefer_pre_built = true;
 
 // If you want to test your added extensions and libs, add below (comma separated, example `bcmath,openssl`).
 $extensions = match (PHP_OS_FAMILY) {
-    'Linux', 'Darwin' => 'apcu,ast,bcmath,calendar,ctype,curl,dba,dom,exif,fileinfo,filter,iconv,libxml,mbregex,mbstring,opcache,openssl,pcntl,phar,posix,readline,session,simplexml,sockets,sodium,tokenizer,xml,xmlreader,xmlwriter,zip,zlib,amqp,brotli,bz2,dio,ds,ev,event,ffi,ftp,gd,gettext,gmp,gmssl,igbinary,imagick,inotify,intl,ldap,lz4,memcache,memcached,mongodb,msgpack,mysqli,mysqlnd,odbc,opentelemetry,parallel,pdo,pdo_mysql,pdo_odbc,pdo_pgsql,pdo_sqlite,pdo_sqlsrv,pgsql,protobuf,rar,redis,rdkafka,shmop,spx,sqlite3,sqlsrv,ssh2,swoole,sysvmsg,sysvsem,sysvshm,tidy,uuid,uv,xhprof,xlswriter,xsl,xz,yac,yaml,zstd',
+    'Linux', 'Darwin' => 'apcu,ast,bcmath,calendar,ctype,curl,dba,dom,exif,fileinfo,filter,iconv,libxml,mbregex,mbstring,opcache,openssl,pcntl,phar,posix,readline,session,simplexml,sockets,sodium,tokenizer,xml,xmlreader,xmlwriter,zip,zlib',
     'Windows' => 'intl',
 };