diff --git a/RKTRUST/RK3126TOS.ini b/RKTRUST/RK3126TOS.ini
index 278a0cd6..fb6a2403 100644
--- a/RKTRUST/RK3126TOS.ini
+++ b/RKTRUST/RK3126TOS.ini
@@ -1,3 +1,3 @@
 [TOS_BIN_PATH]
 TOS=tools/rk_tools/bin/rk31/rk3126_tee_v1.01.bin
-TOSTA=tools/rk_tools/bin/rk31/rk3126_tee_ta_v1.20.bin
+TOSTA=tools/rk_tools/bin/rk31/rk3126_tee_ta_v1.21.bin
diff --git a/bin/rk31/rk3126_tee_ta_v1.20.bin b/bin/rk31/rk3126_tee_ta_v1.21.bin
similarity index 82%
rename from bin/rk31/rk3126_tee_ta_v1.20.bin
rename to bin/rk31/rk3126_tee_ta_v1.21.bin
index 09de929d..1b462ea0 100755
Binary files a/bin/rk31/rk3126_tee_ta_v1.20.bin and b/bin/rk31/rk3126_tee_ta_v1.21.bin differ
diff --git a/bin/rk31/rk3126_tee_v1.00.bin b/bin/rk31/rk3126_tee_v1.00.bin
deleted file mode 100644
index f6931b66..00000000
Binary files a/bin/rk31/rk3126_tee_v1.00.bin and /dev/null differ