diff --git a/librb/src/gnutls_ratbox.h b/librb/src/gnutls_ratbox.h
index 6def3086..6362b903 100644
--- a/librb/src/gnutls_ratbox.h
+++ b/librb/src/gnutls_ratbox.h
@@ -31,6 +31,5 @@ static const char rb_gnutls_default_priority_str[] = ""
 	"!3DES-CBC:"
 	"!MD5:"
 	"VERS-TLS-ALL:"
-	"!VERS-TLS1.0:"
 	"!VERS-SSL3.0:"
 	"%SAFE_RENEGOTIATION";
diff --git a/librb/src/mbedtls.c b/librb/src/mbedtls.c
index 25bbb0fb..b7460e0c 100644
--- a/librb/src/mbedtls.c
+++ b/librb/src/mbedtls.c
@@ -233,8 +233,8 @@ rb_mbedtls_cfg_new(void)
 	mbedtls_ssl_conf_authmode(&cfg->server_cfg, MBEDTLS_SSL_VERIFY_OPTIONAL);
 	mbedtls_ssl_conf_authmode(&cfg->client_cfg, MBEDTLS_SSL_VERIFY_NONE);
 
-	mbedtls_ssl_conf_min_version(&cfg->server_cfg, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_2);
-	mbedtls_ssl_conf_min_version(&cfg->client_cfg, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_2);
+	mbedtls_ssl_conf_min_version(&cfg->server_cfg, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1);
+	mbedtls_ssl_conf_min_version(&cfg->client_cfg, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1);
 
 	#ifdef MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE
 	mbedtls_ssl_conf_legacy_renegotiation(&cfg->client_cfg, MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE);
diff --git a/librb/src/openssl.c b/librb/src/openssl.c
index b2f179a1..4d3994ce 100644
--- a/librb/src/openssl.c
+++ b/librb/src/openssl.c
@@ -431,10 +431,6 @@ rb_setup_ssl_server(const char *const certfile, const char *keyfile,
 	(void) SSL_CTX_set_options(ssl_ctx_new, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
 	#endif
 
-	#ifdef SSL_OP_NO_TLSv1
-	(void) SSL_CTX_set_options(ssl_ctx_new, SSL_OP_NO_TLSv1);
-	#endif
-
 	#ifdef SSL_OP_NO_TICKET
 	(void) SSL_CTX_set_options(ssl_ctx_new, SSL_OP_NO_TICKET);
 	#endif