diff --git a/README.md b/README.md
index cc77116cff..1235323de3 100644
--- a/README.md
+++ b/README.md
@@ -115,6 +115,7 @@ Supported Cars
 | Toyota    | Prius 2016-20                 | TSS-P             | Stock<sup>3</sup>| 0mph               | 0mph              |
 | Toyota    | Prius 2021                    | All               | openpilot        | 0mph               | 0mph              |
 | Toyota    | Prius Prime 2017-20           | All               | Stock<sup>3</sup>| 0mph               | 0mph              |
+| Toyota    | Prius Prime 2021              | All               | openpilot        | 0mph               | 0mph              |
 | Toyota    | Rav4 2016-18                  | TSS-P             | Stock<sup>3</sup>| 20mph<sup>1</sup>  | 0mph              |
 | Toyota    | Rav4 2019-21                  | All               | openpilot        | 0mph               | 0mph              |
 | Toyota    | Rav4 Hybrid 2016-18           | TSS-P             | Stock<sup>3</sup>| 0mph               | 0mph              |
diff --git a/selfdrive/car/toyota/values.py b/selfdrive/car/toyota/values.py
index 818e808e8a..accf0df136 100644
--- a/selfdrive/car/toyota/values.py
+++ b/selfdrive/car/toyota/values.py
@@ -1383,8 +1383,10 @@ FW_VERSIONS = {
   CAR.PRIUS_TSS2: {
     (Ecu.engine, 0x700, None): [
       b'\x038966347C1000\x00\x00\x00\x008966A4703000\x00\x00\x00\x00897CF4710101\x00\x00\x00\x00',
+      b'\x038966347C5000\x00\x00\x00\x008966A4703000\x00\x00\x00\x00897CF4707101\x00\x00\x00\x00',
     ],
     (Ecu.esp, 0x7b0, None): [
+      b'F152647500\x00\x00\x00\x00\x00\x00',
       b'F152647520\x00\x00\x00\x00\x00\x00',
     ],
     (Ecu.eps, 0x7a1, None): [