diff --git a/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet b/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
index bdbe57a21149433ba688cba92076e2d092da94e1..a540a1fe5ccab7210f5b1ea60d83377ae70bf4c1 100644
--- a/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
+++ b/jsonnet/kube-prometheus/alertmanager/alertmanager.libsonnet
@@ -141,7 +141,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
         spec: {
           replicas: $._config.alertmanager.replicas,
           version: $._config.versions.alertmanager,
-          baseImage: $._config.imageRepos.alertmanager,
+          image: $._config.imageRepos.alertmanager + ':' + $._config.versions.alertmanager,
           nodeSelector: { 'kubernetes.io/os': 'linux' },
           serviceAccountName: 'alertmanager-' + $._config.alertmanager.name,
           securityContext: {
diff --git a/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet b/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
index 07e99483fbb06271d409b3f56eef59c05963911f..5d675c7984720fb41c4c274d47bd1da30e73ac38 100644
--- a/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
+++ b/jsonnet/kube-prometheus/kube-prometheus-thanos-sidecar.libsonnet
@@ -30,7 +30,7 @@ local servicePort = k.core.v1.service.mixin.spec.portsType;
       spec+: {
         thanos+: {
           version: $._config.versions.thanos,
-          baseImage: $._config.imageRepos.thanos,
+          image: $._config.imageRepos.thanos + ':' + $._config.versions.thanos,
           objectStorageConfig: $._config.thanos.objectStorageConfig,
         },
       },
diff --git a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
index 2ea5f800de3d8e406d410df716301da6599bc591..a93bcb43b6c83516ee4c2802d02e0d03ee8f3d03 100644
--- a/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
+++ b/jsonnet/kube-prometheus/prometheus/prometheus.libsonnet
@@ -178,7 +178,7 @@ local k = import 'ksonnet/ksonnet.beta.4/k.libsonnet';
         spec: {
           replicas: p.replicas,
           version: $._config.versions.prometheus,
-          baseImage: $._config.imageRepos.prometheus,
+          image: $._config.imageRepos.prometheus + ':' + $._config.versions.prometheus,
           serviceAccountName: 'prometheus-' + p.name,
           serviceMonitorSelector: {},
           podMonitorSelector: {},
diff --git a/manifests/alertmanager-alertmanager.yaml b/manifests/alertmanager-alertmanager.yaml
index 87f98b333a5643db54a813dbb6e4ee252ea0ab44..17ec23288c33ba3b796859254240c05ee1f5b368 100644
--- a/manifests/alertmanager-alertmanager.yaml
+++ b/manifests/alertmanager-alertmanager.yaml
@@ -6,7 +6,7 @@ metadata:
   name: main
   namespace: monitoring
 spec:
-  baseImage: quay.io/prometheus/alertmanager
+  image: quay.io/prometheus/alertmanager:v0.20.0
   nodeSelector:
     kubernetes.io/os: linux
   replicas: 3
diff --git a/manifests/prometheus-prometheus.yaml b/manifests/prometheus-prometheus.yaml
index 1c8422d5561b9b28f80733ec5b025e7dfa53651a..62c1c0b74931ca5f7cb02738f8058ca308a4a9ba 100644
--- a/manifests/prometheus-prometheus.yaml
+++ b/manifests/prometheus-prometheus.yaml
@@ -11,7 +11,7 @@ spec:
     - name: alertmanager-main
       namespace: monitoring
       port: web
-  baseImage: quay.io/prometheus/prometheus
+  image: quay.io/prometheus/prometheus:v2.15.2
   nodeSelector:
     kubernetes.io/os: linux
   podMonitorNamespaceSelector: {}