Bump the version number to 5.1.3alpha.
diff --git a/src/liblzma/api/lzma/version.h b/src/liblzma/api/lzma/version.h
index cba794f..a19d2d6 100644
--- a/src/liblzma/api/lzma/version.h
+++ b/src/liblzma/api/lzma/version.h
@@ -22,7 +22,7 @@
  */
 #define LZMA_VERSION_MAJOR 5
 #define LZMA_VERSION_MINOR 1
-#define LZMA_VERSION_PATCH 2
+#define LZMA_VERSION_PATCH 3
 #define LZMA_VERSION_STABILITY LZMA_VERSION_STABILITY_ALPHA
 
 #ifndef LZMA_VERSION_COMMIT
diff --git a/src/liblzma/liblzma.map b/src/liblzma/liblzma.map
index 85d9d77..b5e125e 100644
--- a/src/liblzma/liblzma.map
+++ b/src/liblzma/liblzma.map
@@ -95,7 +95,7 @@
 	lzma_vli_size;
 };
 
-XZ_5.1.2alpha {
+XZ_5.1.3alpha {
 global:
 	lzma_block_uncomp_encode;
 	lzma_get_progress;