diff --git a/pygeoapi/provider/mvt_proxy.py b/pygeoapi/provider/mvt_proxy.py
index d5f1c1eb2..79853a4c6 100644
--- a/pygeoapi/provider/mvt_proxy.py
+++ b/pygeoapi/provider/mvt_proxy.py
@@ -176,7 +176,7 @@ def get_tiles(self, layer=None, tileset=None,
                     else:
                         resp = session.get(f'{base_url}/{layer}/{z}/{x}/{y}{url_query}')  # noqa
 
-                    if resp.status_code == 404:
+                    if resp.status_code in [404, 500]:
                         if (self.is_in_limits(self.get_tilematrixset(tileset), z, x, y)): # noqa
                             return None
                         raise ProviderTileNotFoundError