diff --git a/library/certs.c b/library/certs.c
index 22caca2a4..360325c85 100644
--- a/library/certs.c
+++ b/library/certs.c
@@ -205,16 +205,12 @@ const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa );
 
 #if defined(MBEDTLS_SHA256_C)
 /* tests/data_files/server2-sha256.crt */
-/* Or more precisely, this is the contents of the version of this file
- * that's in the mbedtls-2.16 branch, due to a backporting mistake.
- * We don't want to change the contents now, as that would change the size
- * which is part of the ABI, which should be stable in LTS branches. */
 #define TEST_SRV_CRT_RSA_SHA256                                          \
 "-----BEGIN CERTIFICATE-----\r\n"                                        \
 "MIIDNzCCAh+gAwIBAgIBAjANBgkqhkiG9w0BAQsFADA7MQswCQYDVQQGEwJOTDER\r\n"   \
-"MA8GA1UECgwIUG9sYXJTU0wxGTAXBgNVBAMMEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"   \
+"MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN\r\n"   \
 "MTkwMjEwMTQ0NDA2WhcNMjkwMjEwMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G\r\n"   \
-"A1UECgwIUG9sYXJTU0wxEjAQBgNVBAMMCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n"   \
+"A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN\r\n"   \
 "AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN\r\n"   \
 "owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz\r\n"   \
 "NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM\r\n"   \
@@ -222,13 +218,13 @@ const size_t mbedtls_test_ca_crt_rsa_len = sizeof( mbedtls_test_ca_crt_rsa );
 "hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya\r\n"   \
 "HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaNNMEswCQYD\r\n"   \
 "VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw\r\n"   \
-"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBAC465FJh\r\n"   \
-"Pqel7zJngHIHJrqj/wVAxGAFOTF396XKATGAp+HRCqJ81Ry60CNK1jDzk8dv6M6U\r\n"   \
-"HoS7RIFiM/9rXQCbJfiPD5xMTejZp5n5UYHAmxsxDaazfA5FuBhkfokKK6jD4Eq9\r\n"   \
-"1C94xGKb6X4/VkaPF7cqoBBw/bHxawXc0UEPjqayiBpCYU/rJoVZgLqFVP7Px3sv\r\n"   \
-"a1nOrNx8rPPI1hJ+ZOg8maiPTxHZnBVLakSSLQy/sWeWyazO1RnrbxjrbgQtYKz0\r\n"   \
-"e3nwGpu1w13vfckFmUSBhHXH7AAS/HpKC4IH7G2GAk3+n8iSSN71sZzpxonQwVbo\r\n"   \
-"pMZqLmbBm/7WPLc=\r\n"                                                   \
+"FoAUtFrkpbPe0lL2udWmlQ/rPrzH/f8wDQYJKoZIhvcNAQELBQADggEBALVvYxsd\r\n"   \
+"o5YSOIaApPlpnFUnz5zD/TbI9/63iJH+ae61jvpjTY1bqLBBEcqMMg9tVFUdt4xd\r\n"   \
+"9MifL5zRZOGqKpfhWyoUZv7kXXMtfJsy0A6sqK11FcUE9r2Mt50tAO1MLZLJ5tKD\r\n"   \
+"XY9/dTqXnENPxCGUo89/UwIFuNhKPUDBRMeyx8FaKsGVksF/lGxYVFWrfzZFlW0M\r\n"   \
+"SXduk5xjoHE83erLEtZoxWIgrx7LXXgkDtswGkH+VpFt9dFFXJaeAQPeUBDAhEE9\r\n"   \
+"UDkaCx5tPlyriwUW1w1xDx40VFV+Dgg9CFxiHCF+ppg+MG8HV0LVDRJlhN94QHNg\r\n"   \
+"DAAVd5iuv8P+00Y=\r\n" \
 "-----END CERTIFICATE-----\r\n"
 
 const char mbedtls_test_srv_crt_rsa[]     =  TEST_SRV_CRT_RSA_SHA256;