diff --git a/code/client-scripts-ves-v7/config.yml b/code/client-scripts-ves-v7/config.yaml
similarity index 100%
rename from code/client-scripts-ves-v7/config.yml
rename to code/client-scripts-ves-v7/config.yaml
diff --git a/solution/network/docker-compose.yml b/solution/network/docker-compose.yaml
similarity index 100%
rename from solution/network/docker-compose.yml
rename to solution/network/docker-compose.yaml
diff --git a/solution/smo/apps/docker-compose.yml b/solution/smo/apps/docker-compose.yaml
similarity index 100%
rename from solution/smo/apps/docker-compose.yml
rename to solution/smo/apps/docker-compose.yaml
diff --git a/solution/smo/common/docker-compose.yml b/solution/smo/common/docker-compose.yaml
similarity index 98%
rename from solution/smo/common/docker-compose.yml
rename to solution/smo/common/docker-compose.yaml
index 4007619..ebfac8b 100755
--- a/solution/smo/common/docker-compose.yml
+++ b/solution/smo/common/docker-compose.yaml
@@ -57,10 +57,10 @@
       - --providers.docker.network=${TRAEFIK_NETWORK_NAME}
       - --providers.docker.exposedByDefault=false
       - --providers.docker.watch=true
-      - --providers.file.filename=/middleware.yml
+      - --providers.file.filename=/middleware.yaml
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
-      - ./gateway/conf/middleware.yml:/middleware.yml:ro
+      - ./gateway/conf/middleware.yaml:/middleware.yaml:ro
       - ./gateway/conf/.htpasswd:/.htpasswd:ro
     labels:
       traefik.enable: true
diff --git a/solution/smo/common/gateway/conf/middleware.yml b/solution/smo/common/gateway/conf/middleware.yaml
similarity index 100%
rename from solution/smo/common/gateway/conf/middleware.yml
rename to solution/smo/common/gateway/conf/middleware.yaml
diff --git a/solution/smo/oam/docker-compose.yml b/solution/smo/oam/docker-compose.yaml
similarity index 100%
rename from solution/smo/oam/docker-compose.yml
rename to solution/smo/oam/docker-compose.yaml