diff --git a/openapi/typescript.sh b/openapi/typescript.sh
index 01e1405..32dffc2 100755
--- a/openapi/typescript.sh
+++ b/openapi/typescript.sh
@@ -46,7 +46,7 @@ popd > /dev/null
 source "${SCRIPT_ROOT}/openapi-generator/client-generator.sh"
 source "${SETTING_FILE}"
 
-OPENAPI_GENERATOR_COMMIT="${OPENAPI_GENERATOR_COMMIT:-v4.0.3}"; \
+OPENAPI_GENERATOR_COMMIT="${OPENAPI_GENERATOR_COMMIT:-v6.4.0}"; \
 CLIENT_LANGUAGE=typescript; \
 CLEANUP_DIRS=(api model); \
 kubeclient::generator::generate_client "${OUTPUT_DIR}"