diff --git a/include/rtdef.h b/include/rtdef.h
index 8e2f26b60fe..1d6993eab63 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -83,7 +83,7 @@ extern "C" {
 /* RT-Thread version information */
 #define RT_VERSION_MAJOR                5               /**< Major version number (X.x.x) */
 #define RT_VERSION_MINOR                2               /**< Minor version number (x.X.x) */
-#define RT_VERSION_PATCH                1               /**< Patch version number (x.x.X) */
+#define RT_VERSION_PATCH                2               /**< Patch version number (x.x.X) */
 
 /* e.g. #if (RTTHREAD_VERSION >= RT_VERSION_CHECK(4, 1, 0) */
 #define RT_VERSION_CHECK(major, minor, revise)          ((major * 10000U) + (minor * 100U) + revise)