diff --git a/hal/tls/mbedtls/mbedtls_config.h b/hal/tls/mbedtls/mbedtls_config.h
index e8414377..d9c0a21d 100644
--- a/hal/tls/mbedtls/mbedtls_config.h
+++ b/hal/tls/mbedtls/mbedtls_config.h
@@ -12,6 +12,7 @@
 #define MBEDTLS_CIPHER_MODE_CBC
 #define MBEDTLS_PKCS1_V15
 #define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
+#define MBEDTLS_SSL_PROTO_TLS1_2
 #define MBEDTLS_SSL_PROTO_TLS1_1
 #define MBEDTLS_SSL_PROTO_TLS1
 #define MBEDTLS_SSL_RENEGOTIATION