diff --git a/manifests/kube-prometheus-stack/values.yaml b/manifests/kube-prometheus-stack/values.yaml
index 7d3c547..a8dd8f3 100644
--- a/manifests/kube-prometheus-stack/values.yaml
+++ b/manifests/kube-prometheus-stack/values.yaml
@@ -36,7 +36,7 @@ prometheus:
           accessModes: ["ReadWriteOnce"]
           resources:
             requests:
-              storage: 20Gi
+              storage: 50Gi
 
     enableAdminAPI: true