diff --git a/templates/hap_backend.tpl b/templates/hap_backend.tpl
index 925f3e7..6b19e48 100644
--- a/templates/hap_backend.tpl
+++ b/templates/hap_backend.tpl
@@ -11,7 +11,7 @@ backend {{ name }}-backend
     http-request set-header X-Forwarded-Proto http if !{ ssl_fc }
 
     {% for server in servers %}
-    server {{ server.server_name }} {{ server.server_address }}:{{ server.server_port }} {{ server.server_options }}
+    server {{ server.server_name }} {{ server.server_address }}:{{ server.server_port }} {{ server.server_options }} resolvers docker_dns init-addr last,libc,none
     {% endfor %}
 
 # SSE-specific backend - optimized for Server-Sent Events long-lived connections
@@ -36,5 +36,5 @@ backend {{ name }}-sse-backend
     http-request set-header X-Forwarded-Proto http if !{ ssl_fc }
 
     {% for server in servers %}
-    server {{ server.server_name }} {{ server.server_address }}:{{ server.server_port }} {{ server.server_options }}
+    server {{ server.server_name }} {{ server.server_address }}:{{ server.server_port }} {{ server.server_options }} resolvers docker_dns init-addr last,libc,none
     {% endfor %}
diff --git a/templates/hap_header.tpl b/templates/hap_header.tpl
index bfe0333..f0c5414 100644
--- a/templates/hap_header.tpl
+++ b/templates/hap_header.tpl
@@ -18,6 +18,21 @@ global
     log         127.0.0.1 local2
 
     chroot      /var/lib/haproxy
+
+# DNS resolver for Docker container name resolution
+# Re-resolves backend server addresses so container IP changes
+# (from restarts, recreations, scaling) are picked up automatically
+resolvers docker_dns
+    nameserver dns1 127.0.0.11:53
+    resolve_retries 3
+    timeout resolve 1s
+    timeout retry 1s
+    hold valid 10s
+    hold other 10s
+    hold refused 10s
+    hold nx 10s
+    hold timeout 10s
+    hold obsolete 10s
     pidfile     /var/run/haproxy.pid
     maxconn     4000
     user        haproxy