diff --git a/tests/suites/test_suite_constant_time_hmac.function b/tests/suites/test_suite_constant_time_hmac.function
index 985d482..55886fa 100644
--- a/tests/suites/test_suite_constant_time_hmac.function
+++ b/tests/suites/test_suite_constant_time_hmac.function
@@ -28,7 +28,7 @@
     size_t min_in_len, in_len, max_in_len, i;
     /* TLS additional data is 13 bytes (hence the "lucky 13" name) */
     unsigned char add_data[13];
-    unsigned char ref_out[MBEDTLS_HASH_MAX_SIZE];
+    unsigned char ref_out[MBEDTLS_MD_MAX_SIZE];
     unsigned char *data = NULL;
     unsigned char *out = NULL;
     unsigned char rec_num = 0;
diff --git a/tests/suites/test_suite_ecdsa.function b/tests/suites/test_suite_ecdsa.function
index 60bb6c2..14fe2f0 100644
--- a/tests/suites/test_suite_ecdsa.function
+++ b/tests/suites/test_suite_ecdsa.function
@@ -15,7 +15,7 @@
     mbedtls_ecp_point Q;
     mbedtls_mpi d, r, s;
     mbedtls_test_rnd_pseudo_info rnd_info;
-    unsigned char buf[MBEDTLS_HASH_MAX_SIZE];
+    unsigned char buf[MBEDTLS_MD_MAX_SIZE];
 
     mbedtls_ecp_group_init(&grp);
     mbedtls_ecp_point_init(&Q);
@@ -47,7 +47,7 @@
     mbedtls_ecp_point Q;
     mbedtls_mpi d, r, s;
     mbedtls_test_rnd_pseudo_info rnd_info;
-    unsigned char buf[MBEDTLS_HASH_MAX_SIZE];
+    unsigned char buf[MBEDTLS_MD_MAX_SIZE];
 
     mbedtls_ecp_group_init(&grp);
     mbedtls_ecp_point_init(&Q);
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 6f9e544..fb71b83 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -1974,7 +1974,7 @@
                                  data_t *transcript,
                                  data_t *binder_expected)
 {
-    unsigned char binder[MBEDTLS_HASH_MAX_SIZE];
+    unsigned char binder[MBEDTLS_MD_MAX_SIZE];
 
     /* Double-check that we've passed sane parameters. */
     psa_algorithm_t alg = (psa_algorithm_t) hash_alg;
@@ -2108,7 +2108,7 @@
                              data_t *input,
                              data_t *expected)
 {
-    unsigned char secret_new[MBEDTLS_HASH_MAX_SIZE];
+    unsigned char secret_new[MBEDTLS_MD_MAX_SIZE];
 
     PSA_INIT();