diff --git a/carvel-packages/cluster-essentials/bundle/config/_ytt_lib/contour/resources.yaml b/carvel-packages/cluster-essentials/bundle/config/_ytt_lib/contour/resources.yaml
index 8183b746..06093a3b 100644
--- a/carvel-packages/cluster-essentials/bundle/config/_ytt_lib/contour/resources.yaml
+++ b/carvel-packages/cluster-essentials/bundle/config/_ytt_lib/contour/resources.yaml
@@ -7,6 +7,9 @@
 #@ def kind_values():
 contour:
   replicas: 1
+  configFileContents:
+    default-http-versions:
+    - "HTTP/1.1"
 envoy:
   service:
     type: ClusterIP