diff --git a/prometheus/templates/bin/_prometheus.sh.tpl b/prometheus/templates/bin/_prometheus.sh.tpl
index 972a8225..ad0d75c1 100644
--- a/prometheus/templates/bin/_prometheus.sh.tpl
+++ b/prometheus/templates/bin/_prometheus.sh.tpl
@@ -26,6 +26,8 @@ function start () {
     --query.max-concurrency={{ .Values.conf.prometheus.query.max_concurrency }} \
     --storage.tsdb.path={{ .Values.conf.prometheus.storage.tsdb.path }} \
     --storage.tsdb.retention={{ .Values.conf.prometheus.storage.tsdb.retention }} \
+    --storage.tsdb.min-block-duration={{ .Values.conf.prometheus.storage.tsdb.min_block_duration }} \
+    --storage.tsdb.max-block-duration={{ .Values.conf.prometheus.storage.tsdb.max_block_duration }} \
     {{ if .Values.conf.prometheus.web_admin_api.enabled }}
     --web.enable-admin-api \
     {{ end }}
diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index c607c16d..2cbbce35 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -189,6 +189,8 @@ conf:
       tsdb:
         path: /var/lib/prometheus/data
         retention: 7d
+        min_block_duration: 2h
+        max_block_duration: 6h
     log:
       format: logger:stdout?json=true
       level: info
@@ -199,8 +201,8 @@ conf:
       enabled: false
     scrape_configs:
       global:
-        scrape_interval: 25s
-        evaluation_interval: 10s
+        scrape_interval: 60s
+        evaluation_interval: 60s
       rule_files:
         - /etc/config/rules/alertmanager.rules
         - /etc/config/rules/etcd3.rules