diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index ee7ae998..be74074d 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit ee7ae998aa5449a72ccb9615104b2198bc971a65
+Subproject commit be74074d382a43e970de05fe88f412e5a05e38d6
diff --git a/api/source/mk_util.cpp b/api/source/mk_util.cpp
index 18c21fef..6f50e185 100644
--- a/api/source/mk_util.cpp
+++ b/api/source/mk_util.cpp
@@ -11,6 +11,7 @@
 #include "mk_util.h"
 #include <stdarg.h>
 #include <assert.h>
+#include "Util/util.h"
 #include "Util/logger.h"
 using namespace std;
 using namespace toolkit;
@@ -47,12 +48,12 @@ API_EXPORT char* API_CALL mk_util_hex_dump(const void *buf, int len){
 API_EXPORT void API_CALL mk_log_printf(int level, const char *file, const char *function, int line, const char *fmt, ...) {
     assert(file && function && fmt);
     LogContextCapturer info(Logger::Instance(), (LogLevel) level, file, function, line);
-    va_list pArg;
-    va_start(pArg, fmt);
-    char buf[4096];
-    auto n = vsnprintf(buf, sizeof(buf), fmt, pArg);
-    buf[n] = '\0';
-    va_end(pArg);
-    info << buf;
+    va_list ap;
+    va_start(ap, fmt);
+    char *str = nullptr;
+    vasprintf(&str, fmt, ap);
+    va_end(ap);
+    info << str;
+    free(str);
 }