diff --git a/configs/config-thread.h b/configs/config-thread.h
index 2f81f90..e696583 100644
--- a/configs/config-thread.h
+++ b/configs/config-thread.h
@@ -17,15 +17,19 @@
  * - no X.509
  * - support for experimental EC J-PAKE key exchange
  *
+ * To be used in conjunction with configs/crypto-config-thread.h.
  * See README.txt for usage instructions.
  */
 
+#define MBEDTLS_PSA_CRYPTO_CONFIG_FILE "../configs/crypto-config-thread.h"
+
+#define MBEDTLS_PSA_CRYPTO_CONFIG
+
 /* System support */
 #define MBEDTLS_HAVE_ASM
 
 /* Mbed TLS feature support */
 #define MBEDTLS_AES_ROM_TABLES
-#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
 #define MBEDTLS_ECP_NIST_OPTIM
 #define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
 #define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
@@ -35,23 +39,17 @@
 #define MBEDTLS_SSL_DTLS_HELLO_VERIFY
 
 /* Mbed TLS modules */
-#define MBEDTLS_AES_C
 #define MBEDTLS_ASN1_PARSE_C
 #define MBEDTLS_ASN1_WRITE_C
 #define MBEDTLS_BIGNUM_C
-#define MBEDTLS_CCM_C
 #define MBEDTLS_CIPHER_C
 #define MBEDTLS_CTR_DRBG_C
-#define MBEDTLS_CMAC_C
-#define MBEDTLS_ECJPAKE_C
-#define MBEDTLS_ECP_C
 #define MBEDTLS_ENTROPY_C
 #define MBEDTLS_HMAC_DRBG_C
 #define MBEDTLS_MD_C
 #define MBEDTLS_OID_C
 #define MBEDTLS_PK_C
 #define MBEDTLS_PK_PARSE_C
-#define MBEDTLS_SHA256_C
 #define MBEDTLS_SSL_COOKIE_C
 #define MBEDTLS_SSL_CLI_C
 #define MBEDTLS_SSL_SRV_C