diff --git a/scripts/mbedtls_dev/crypto_knowledge.py b/scripts/mbedtls_dev/crypto_knowledge.py
index 65dbc347d7..e9dad1d2d1 100644
--- a/scripts/mbedtls_dev/crypto_knowledge.py
+++ b/scripts/mbedtls_dev/crypto_knowledge.py
@@ -54,7 +54,7 @@ class KeyType:
 
     ECC_KEY_SIZES = {
         'PSA_ECC_FAMILY_SECP_K1': (192, 224, 256),
-        'PSA_ECC_FAMILY_SECP_R1': (192, 225, 256, 384, 521),
+        'PSA_ECC_FAMILY_SECP_R1': (225, 256, 384, 521),
         'PSA_ECC_FAMILY_SECP_R2': (160,),
         'PSA_ECC_FAMILY_SECT_K1': (163, 233, 239, 283, 409, 571),
         'PSA_ECC_FAMILY_SECT_R1': (163, 233, 283, 409, 571),