diff --git a/libavformat/matroska.h b/libavformat/matroska.h
index a13de18ef1..91bb978422 100644
--- a/libavformat/matroska.h
+++ b/libavformat/matroska.h
@@ -233,8 +233,8 @@ typedef enum {
     MATROSKA_VIDEO_FIELDORDER_UNDETERMINED = 2,
     MATROSKA_VIDEO_FIELDORDER_TT           = 1,
     MATROSKA_VIDEO_FIELDORDER_BB           = 6,
-    MATROSKA_VIDEO_FIELDORDER_BT           = 9,
-    MATROSKA_VIDEO_FIELDORDER_TB           = 14,
+    MATROSKA_VIDEO_FIELDORDER_TB           = 9,
+    MATROSKA_VIDEO_FIELDORDER_BT           = 14,
 } MatroskaVideoFieldOrder;
 
 typedef enum {
diff --git a/libavformat/version.h b/libavformat/version.h
index a6643a9e25..c329c2f302 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 57
-#define LIBAVFORMAT_VERSION_MINOR  8
+#define LIBAVFORMAT_VERSION_MINOR  9
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \