diff --git a/ansible/files/envoy_config/lds.supabase.yaml b/ansible/files/envoy_config/lds.supabase.yaml
index 6fdcb68c7..df65b0690 100644
--- a/ansible/files/envoy_config/lds.supabase.yaml
+++ b/ansible/files/envoy_config/lds.supabase.yaml
@@ -388,6 +388,7 @@ 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 97481c889..d7381b3e1 100644
--- a/ansible/files/envoy_config/lds.yaml
+++ b/ansible/files/envoy_config/lds.yaml
@@ -432,6 +432,7 @@ 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