diff --git a/include/mbedtls/config_psa.h b/include/mbedtls/config_psa.h
index c46ed56..39a5001 100644
--- a/include/mbedtls/config_psa.h
+++ b/include/mbedtls/config_psa.h
@@ -678,7 +678,8 @@
 #define PSA_WANT_ECC_SECP_K1_192
 #endif
 
-#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
+/* SECP224K1 is buggy via the PSA API (https://github.com/ARMmbed/mbedtls/issues/3541) */
+#if 0 && defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
 #define MBEDTLS_PSA_BUILTIN_ECC_SECP_K1_224 1
 #define PSA_WANT_ECC_SECP_K1_224
 #endif
diff --git a/include/psa/crypto_config.h b/include/psa/crypto_config.h
index bad1e34..afbaa66 100644
--- a/include/psa/crypto_config.h
+++ b/include/psa/crypto_config.h
@@ -87,7 +87,8 @@
 /* Curve448 is not yet supported via the PSA API (https://github.com/ARMmbed/mbedtls/issues/4249) */
 //#define PSA_WANT_ECC_MONTGOMERY_448             1
 #define PSA_WANT_ECC_SECP_K1_192                1
-#define PSA_WANT_ECC_SECP_K1_224                1
+/* SECP224K1 is buggy via the PSA API (https://github.com/ARMmbed/mbedtls/issues/3541) */
+//#define PSA_WANT_ECC_SECP_K1_224                1
 #define PSA_WANT_ECC_SECP_K1_256                1
 #define PSA_WANT_ECC_SECP_R1_192                1
 #define PSA_WANT_ECC_SECP_R1_224                1