diff --git a/include/gmssl/version.h b/include/gmssl/version.h
index 5c0319f0..8eb37082 100644
--- a/include/gmssl/version.h
+++ b/include/gmssl/version.h
@@ -25,8 +25,8 @@ Version Public API
 	gmssl_version_str
 */
 
-#define GMSSL_VERSION_NUM	30100
-#define GMSSL_VERSION_STR	"GmSSL 3.1.0"
+#define GMSSL_VERSION_NUM	30101
+#define GMSSL_VERSION_STR	"GmSSL 3.1.1 Dev"
 
 _gmssl_export int gmssl_version_num(void);
 _gmssl_export const char *gmssl_version_str(void);