diff --git a/include/internal/cef_types.h b/include/internal/cef_types.h
index 8e654126d..ea9f6ad42 100644
--- a/include/internal/cef_types.h
+++ b/include/internal/cef_types.h
@@ -2817,7 +2817,7 @@ typedef enum {
   SSL_CONNECTION_VERSION_TLS1 = 3,
   SSL_CONNECTION_VERSION_TLS1_1 = 4,
   SSL_CONNECTION_VERSION_TLS1_2 = 5,
-  // Reserve 6 for TLS 1.3.
+  SSL_CONNECTION_VERSION_TLS1_3 = 6,
   SSL_CONNECTION_VERSION_QUIC = 7,
 } cef_ssl_version_t;
 
diff --git a/tests/cefclient/browser/client_handler.cc b/tests/cefclient/browser/client_handler.cc
index 1cdccdbda..d1b9b5e45 100644
--- a/tests/cefclient/browser/client_handler.cc
+++ b/tests/cefclient/browser/client_handler.cc
@@ -128,6 +128,7 @@ std::string GetSSLVersionString(cef_ssl_version_t version) {
   VALUE(version, SSL_CONNECTION_VERSION_TLS1);
   VALUE(version, SSL_CONNECTION_VERSION_TLS1_1);
   VALUE(version, SSL_CONNECTION_VERSION_TLS1_2);
+  VALUE(version, SSL_CONNECTION_VERSION_TLS1_3);
   VALUE(version, SSL_CONNECTION_VERSION_QUIC);
   return std::string();
 }