diff --git a/charts/cnpg-cluster/values.schema.json b/charts/cnpg-cluster/values.schema.json
index 570da43..adafa94 100644
--- a/charts/cnpg-cluster/values.schema.json
+++ b/charts/cnpg-cluster/values.schema.json
@@ -1,6 +1,7 @@
 {
   "type": "object",
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://raw.githubusercontent.com/socialgouv/helm-charts/v1/charts/cnpg-cluster/values.schema.json",
   "required": [],
   "properties": {
     "instances": {
diff --git a/charts/cnpg-cluster/values.yaml b/charts/cnpg-cluster/values.yaml
index 435f1b3..9238734 100644
--- a/charts/cnpg-cluster/values.yaml
+++ b/charts/cnpg-cluster/values.yaml
@@ -127,9 +127,9 @@ poolers: {}
 #         max_client_conn: "1000"
 #         default_pool_size: "10"
 
-# @param {number} [minSyncReplicas] Minimum of syncrhronous replicas. see https://cloudnative-pg.io/documentation/current/replication/#synchronous-replication
+# @param {number} [minSyncReplicas] Minimum of synchrronous replicas. see https://cloudnative-pg.io/documentation/current/replication/#synchronous-replication
 minSyncReplicas: 0
-# @param {number} [maxSyncReplicas] Maximum of syncrhronous replicas. see https://cloudnative-pg.io/documentation/current/replication/#synchronous-replication
+# @param {number} [maxSyncReplicas] Maximum of synchrronous replicas. see https://cloudnative-pg.io/documentation/current/replication/#synchronous-replication
 maxSyncReplicas: 0
 
 # @param {array} [pg_hba] pg_hba entries. See https://www.postgresql.org/docs/9.3/auth-pg-hba-conf.html
diff --git a/charts/maildev/values.schema.json b/charts/maildev/values.schema.json
index 5c963d3..91f5e85 100644
--- a/charts/maildev/values.schema.json
+++ b/charts/maildev/values.schema.json
@@ -1,6 +1,7 @@
 {
   "type": "object",
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://raw.githubusercontent.com/socialgouv/helm-charts/v1/charts/maildev/values.schema.json",
   "required": [],
   "properties": {
     "namespace": {
diff --git a/charts/pgweb/values.schema.json b/charts/pgweb/values.schema.json
index 7a46bf3..47d06ea 100644
--- a/charts/pgweb/values.schema.json
+++ b/charts/pgweb/values.schema.json
@@ -1,6 +1,7 @@
 {
   "type": "object",
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://raw.githubusercontent.com/socialgouv/helm-charts/v1/charts/pgweb/values.schema.json",
   "required": [],
   "properties": {
     "replicaCount": {