diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index ea56f3f..daa92e9 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -1543,6 +1543,9 @@
 depends_on:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_SHA1_C
 mbedtls_x509_csr_parse:"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":"":MBEDTLS_ERR_X509_INVALID_FORMAT + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
 
+X509 CSR ASN.1 (invalid version overflow)
+mbedtls_x509_csr_parse:"3008300602047FFFFFFF":"":MBEDTLS_ERR_X509_UNKNOWN_VERSION
+
 X509 File parse (no issues)
 depends_on:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_SHA256_C
 x509parse_crt_file:"data_files/server7_int-ca.crt":0