diff --git a/packages/nice-grpc-web/test-server/envoy-tls.yaml b/packages/nice-grpc-web/test-server/envoy-tls.yaml
index 2a8ee139..f87361a5 100644
--- a/packages/nice-grpc-web/test-server/envoy-tls.yaml
+++ b/packages/nice-grpc-web/test-server/envoy-tls.yaml
@@ -72,6 +72,7 @@ static_resources:
     - name: backend
       connect_timeout: 0.25s
       type: logical_dns
+      dns_lookup_family: V4_ONLY
       lb_policy: round_robin
       typed_extension_protocol_options:
         envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
diff --git a/packages/nice-grpc-web/test-server/envoy.yaml b/packages/nice-grpc-web/test-server/envoy.yaml
index 775cb500..079b6ad6 100644
--- a/packages/nice-grpc-web/test-server/envoy.yaml
+++ b/packages/nice-grpc-web/test-server/envoy.yaml
@@ -61,6 +61,7 @@ static_resources:
     - name: backend
       connect_timeout: 0.25s
       type: logical_dns
+      dns_lookup_family: V4_ONLY
       lb_policy: round_robin
       typed_extension_protocol_options:
         envoy.extensions.upstreams.http.v3.HttpProtocolOptions: