diff --git a/prometheus/build.json b/prometheus/build.json
deleted file mode 100644
index 5e27149..0000000
--- a/prometheus/build.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "build_from": {
-    "aarch64": "ghcr.io/hassio-addons/base/aarch64:10.0.1",
-    "amd64": "ghcr.io/hassio-addons/base/amd64:10.0.1",
-    "armv7": "ghcr.io/hassio-addons/base/armv7:10.0.1"
-  }
-}
diff --git a/prometheus/build.yaml b/prometheus/build.yaml
new file mode 100644
index 0000000..a98e7c5
--- /dev/null
+++ b/prometheus/build.yaml
@@ -0,0 +1,5 @@
+---
+build_from:
+  aarch64: ghcr.io/hassio-addons/base/aarch64:10.0.1
+  amd64: ghcr.io/hassio-addons/base/amd64:10.0.1
+  armv7: ghcr.io/hassio-addons/base/armv7:10.0.1
diff --git a/prometheus/config.json b/prometheus/config.json
deleted file mode 100755
index 5c2c647..0000000
--- a/prometheus/config.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-  "name": "Prometheus",
-  "version": "dev",
-  "slug": "prometheus",
-  "description": "Cloud native metrics",
-  "url": "https://github.com/hassio-addons/addon-prometheus",
-  "startup": "services",
-  "ingress": true,
-  "ingress_port": 9090,
-  "ingress_entry": "graph",
-  "panel_icon": "mdi:chart-timeline",
-  "panel_title": "Prometheus",
-  "arch": ["aarch64", "amd64", "armv7"],
-  "hassio_api": true,
-  "homeassistant_api": true,
-  "map": ["share:rw"],
-  "ports": {
-    "9090/tcp": null
-  },
-  "ports_description": {
-    "9090/tcp": "Not required for Ingress"
-  }
-}
diff --git a/prometheus/config.yaml b/prometheus/config.yaml
new file mode 100644
index 0000000..ae22021
--- /dev/null
+++ b/prometheus/config.yaml
@@ -0,0 +1,24 @@
+---
+name: Prometheus
+version: dev
+slug: prometheus
+description: Cloud native metrics
+url: https://github.com/hassio-addons/addon-prometheus
+startup: services
+ingress: true
+ingress_port: 9090
+ingress_entry: graph
+panel_icon: mdi:chart-timeline
+panel_title: Prometheus
+arch:
+  - aarch64
+  - amd64
+  - armv7
+hassio_api: true
+homeassistant_api: true
+map:
+  - share:rw
+ports:
+  9090/tcp: null
+ports_description:
+  9090/tcp: Not required for Ingress