diff --git a/src/fido/fido.c b/src/fido/fido.c
index fed12e7..98f091f 100644
--- a/src/fido/fido.c
+++ b/src/fido/fido.c
@@ -112,7 +112,7 @@ int x509_create_cert(mbedtls_ecdsa_context *ecdsa, uint8_t *buffer, size_t buffe
     mbedtls_x509write_cert ctx;
     mbedtls_x509write_crt_init(&ctx);
     mbedtls_x509write_crt_set_version(&ctx, MBEDTLS_X509_CRT_VERSION_3);
-    mbedtls_x509write_crt_set_validity(&ctx, "20220901000000", "20320831235959");
+    mbedtls_x509write_crt_set_validity(&ctx, "20220901000000", "20720831235959");
     mbedtls_x509write_crt_set_issuer_name(&ctx, "C=ES,O=Pico HSM,CN=Pico FIDO");
     mbedtls_x509write_crt_set_subject_name(&ctx, "C=ES,O=Pico HSM,CN=Pico FIDO");
     mbedtls_mpi serial;