diff --git a/vp9/decoder/vp9_decodframe.c b/vp9/decoder/vp9_decodframe.c
index b200e6ccceb43bfd1098dfed3bb9988b3f24a43b..01ab1f93ad2dce839a09289dce5a397ea5a78327 100644
--- a/vp9/decoder/vp9_decodframe.c
+++ b/vp9/decoder/vp9_decodframe.c
@@ -959,7 +959,7 @@ int vp9_decode_frame(VP9D_COMP *pbi, const uint8_t **p_data_end) {
       // When error concealment is enabled we should only check the sync
       // code if we have enough bits available
       if (data + 3 < data_end) {
-        if (data[0] != 0x9d || data[1] != 0x01 || data[2] != 0x2a)
+        if (data[0] != 0x49 || data[1] != 0x83 || data[2] != 0x42)
           vpx_internal_error(&pc->error, VPX_CODEC_UNSUP_BITSTREAM,
                              "Invalid frame sync code");
       }
diff --git a/vp9/encoder/vp9_bitstream.c b/vp9/encoder/vp9_bitstream.c
index bcec13c4bedcafe87ad40e0026169bfe362a9207..d20a2c56c26dc9c470ba44483b2b5e94c3ce302f 100644
--- a/vp9/encoder/vp9_bitstream.c
+++ b/vp9/encoder/vp9_bitstream.c
@@ -1506,9 +1506,9 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
    */
   if (oh.type == KEY_FRAME) {
     // Start / synch code
-    cx_data[0] = 0x9D;
-    cx_data[1] = 0x01;
-    cx_data[2] = 0x2a;
+    cx_data[0] = 0x49;
+    cx_data[1] = 0x83;
+    cx_data[2] = 0x42;
     extra_bytes_packed = 3;
     cx_data += extra_bytes_packed;
   }
diff --git a/vp9/vp9_dx_iface.c b/vp9/vp9_dx_iface.c
index 811cea7f42573694c63a4f4c5af2994c7c7bf7cb..ee11304029389f775c42ce36128fd790ed33a0e0 100644
--- a/vp9/vp9_dx_iface.c
+++ b/vp9/vp9_dx_iface.c
@@ -217,7 +217,7 @@ static vpx_codec_err_t vp8_peek_si(const uint8_t         *data,
   else {
     /* Parse uncompresssed part of key frame header.
      * 3 bytes:- including version, frame type and an offset
-     * 3 bytes:- sync code (0x9d, 0x01, 0x2a)
+     * 3 bytes:- sync code (0x49, 0x83, 0x42)
      * 4 bytes:- including image width and height in the lowest 14 bits
      *           of each 2-byte value.
      */
@@ -228,7 +228,7 @@ static vpx_codec_err_t vp8_peek_si(const uint8_t         *data,
       si->is_kf = 1;
 
       /* vet via sync code */
-      if (c[0] != 0x9d || c[1] != 0x01 || c[2] != 0x2a)
+      if (c[0] != 0x49 || c[1] != 0x83 || c[2] != 0x42)
         res = VPX_CODEC_UNSUP_BITSTREAM;
 
       si->w = (c[3] | (c[4] << 8));