diff --git a/docker-compose-parts/haproxy-behind.yml b/docker-compose-parts/haproxy-behind.yml
index 02039bb..c12d827 100644
--- a/docker-compose-parts/haproxy-behind.yml
+++ b/docker-compose-parts/haproxy-behind.yml
@@ -3,6 +3,8 @@ version: '3.7'
 services:
   isard-sso-haproxy:
     build:
+      args:
+        HAPROXY_IMG:
       context: ${BUILD_ROOT_PATH}/docker/haproxy
       dockerfile: Dockerfile-behind
       target: production
diff --git a/docker/haproxy/Dockerfile-behind b/docker/haproxy/Dockerfile-behind
index de0a834..aaed073 100644
--- a/docker/haproxy/Dockerfile-behind
+++ b/docker/haproxy/Dockerfile-behind
@@ -1,4 +1,5 @@
-FROM haproxy:lts-alpine3.15 as production
+ARG HAPROXY_IMG
+FROM $HAPROXY_IMG as production
 
 USER root
 RUN apk add openssl certbot py-pip