diff --git a/core-deployments.yaml b/core-deployments.yaml
index dc35495..6e84d64 100644
--- a/core-deployments.yaml
+++ b/core-deployments.yaml
@@ -98,7 +98,7 @@ spec:
   sources:
     - chart: kube-prometheus-stack
       repoURL: https://prometheus-community.github.io/helm-charts
-      targetRevision: 51.0.3
+      targetRevision: 49.2.0
       helm:
         releaseName: prometheus
         valueFiles:
diff --git a/prometheus/templates.yaml b/prometheus/templates.yaml
deleted file mode 100644
index 6c8c408..0000000
--- a/prometheus/templates.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: templates
-  namespace: prometheus
-data:
-  telegram.tmpl: |-
-    {{ define "telegram.aaron" }}
-      {{ range .Alerts }}
-      {{ if eq .Status "firing"}}🔥 <b>{{ .Labels.alertname }}</b> 🔥{{ else }}✅ <b>{{ .Labels.alertname }}</b> ✅{{ end }}
-      <b> {{ .Annotations.summary }} </b>
-
-      {{ .Annotations.description }}
-      {{ end }}
-    {{ end }}
\ No newline at end of file
diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index 0906755..650e76f 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -1,10 +1,6 @@
 alertmanager:
   alertmanagerSpec:
     replicas: 2
-    secrets:
-      - "telegram-api"
-    configMaps:
-      - "templates"
     storage:
       volumeClaimTemplate:
        spec:
@@ -12,40 +8,7 @@ alertmanager:
          resources:
            requests:
              storage: 5Gi
-    useExistingSecret: false
-  config:
-    global:
-      resolve_timeout: 5m
-    templates:
-      - '/etc/alertmanager/configmaps/*.tmpl'
-    route:
-      group_by: ['alertname']
-      group_wait: 30s
-      group_interval: 30s
-      repeat_interval: 24h
-      receiver: 'tg1'
-      routes:
-        - matchers:
-          - severity=warning
-          receiver: 'tg1'
-        - matchers:
-          - severity=critical
-          receiver: 'tg1'
-    receivers:
-    - name: tg1
-      telegram_configs:
-      - bot_token_file: '/etc/alertmanager/secrets/api_key'
-        chat_id: -995270884
-        api_url: "https://api.telegram.org"
-        send_resolved: true
-        parse_mode: "HTML"
-        message: '{{ template "telegram.aaron" .}}'
-    inhibit_rules:
-      - source_matchers:
-          - severity = critical
-        target_matchers:
-          - severity = warning
-        equal: ['alertname', 'server', 'instance']
+    useExistingSecret: true
   ingress:
     paths:
       - /