diff --git a/ansible/files/envoy_config/lds.supabase.yaml b/ansible/files/envoy_config/lds.supabase.yaml
index 4a9a01668..4fb9721af 100644
--- a/ansible/files/envoy_config/lds.supabase.yaml
+++ b/ansible/files/envoy_config/lds.supabase.yaml
@@ -394,6 +394,7 @@ resources:
             '@type': >-
               type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext
             common_tls_context:
+              alpn_protocols: [ "h2,http/1.1" ]
               tls_certificates:
                 - certificate_chain:
                     filename: /etc/envoy/fullChain.pem
diff --git a/ansible/files/envoy_config/lds.yaml b/ansible/files/envoy_config/lds.yaml
index b5c2d6fd7..ce595a38d 100644
--- a/ansible/files/envoy_config/lds.yaml
+++ b/ansible/files/envoy_config/lds.yaml
@@ -438,6 +438,7 @@ resources:
             '@type': >-
               type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext
             common_tls_context:
+              alpn_protocols: [ "h2,http/1.1" ]
               tls_certificates:
                 - certificate_chain:
                     filename: /etc/envoy/fullChain.pem