diff --git a/prometheus/values.yaml b/prometheus/values.yaml
index 2c27b95..d5dbed7 100644
--- a/prometheus/values.yaml
+++ b/prometheus/values.yaml
@@ -68,7 +68,7 @@ alertmanager:
       nginx.org/basic-auth-secret: prometheus-basic-auth-secret
   servicePerReplica:
     enabled: true
-  podAntiAffinity: "soft"
+  podAntiAffinity: "hard"
 grafana:
   defaultDashboardsTimezone: Europe/Berlin
   ingress:
@@ -131,4 +131,4 @@ prometheus:
     scrapeConfigSelectorNilUsesHelmValues: false
   servicePerReplica:
     enabled: true
-  podAntiAffinity: "soft"
\ No newline at end of file
+  podAntiAffinity: "hard"
\ No newline at end of file