diff --git a/core-deployments.yaml b/core-deployments.yaml
index f2f9333..2358aff 100644
--- a/core-deployments.yaml
+++ b/core-deployments.yaml
@@ -60,7 +60,7 @@ spec:
   sources:
     - repoURL: https://charts.longhorn.io
       chart: longhorn
-      targetRevision: 1.5.1
+      targetRevision: 1.4.3
       helm:
         releaseName: longhorn
         valueFiles:
@@ -92,7 +92,7 @@ spec:
   sources:
     - chart: kube-prometheus-stack
       repoURL: https://prometheus-community.github.io/helm-charts
-      targetRevision: 46.8.0
+      targetRevision: 48.3.1
       helm:
         releaseName: prometheus
         valueFiles: