diff --git a/Makefile b/Makefile
index 45ecf77..821c26f 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ JB_BINARY := $(GOPATH)/bin/jb
 
 all: manifests
 
-manifests: jsonnet
+manifests: jsonnet fmt
 	rm -rf manifests
 	./scripts/build.sh main.jsonnet $(JSONNET_BIN)
 
diff --git a/arm_exporter.jsonnet b/arm_exporter.jsonnet
index 9ed4ea3..42bd4df 100644
--- a/arm_exporter.jsonnet
+++ b/arm_exporter.jsonnet
@@ -3,6 +3,14 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
 {
   _config+:: {
     namespace: 'monitoring',
+
+    versions+:: {
+      armExporter: 'latest',
+    },
+
+    imageRepos+:: {
+      armExporter: 'carlosedp/arm_exporter',
+    },
   },
 
   armExporter+:: {
diff --git a/elasticsearch_exporter.jsonnet b/elasticsearch_exporter.jsonnet
index 26451be..5c61611 100644
--- a/elasticsearch_exporter.jsonnet
+++ b/elasticsearch_exporter.jsonnet
@@ -5,6 +5,14 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
     namespace: 'monitoring',
     replicas: 1,
 
+    versions+:: {
+      elasticExporter: '1.0.2',
+    },
+
+    imageRepos+:: {
+      elasticExporter: 'justwatch/elasticsearch_exporter',
+    },
+
     // Add custom dashboards
     grafanaDashboards+:: {
       'elasticsearch-dashboard.json': (import 'grafana-dashboards/elasticsearch-dashboard.json'),
diff --git a/main.jsonnet b/main.jsonnet
index d68c18b..de53728 100644
--- a/main.jsonnet
+++ b/main.jsonnet
@@ -13,7 +13,6 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-anti-affinity.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-kops-coredns.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-kubeadm.libsonnet')
-           + (import 'image_sources_versions.jsonnet')
            + (import 'base_operator_stack.jsonnet')
            + (import 'smtp_server.jsonnet')
            // Additional Modules
@@ -21,7 +20,9 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (if installModules.metallb then (import 'metallb.jsonnet') else {})
            + (if installModules.traefik then (import 'traefik.jsonnet') else {})
            + (if installModules['ups-exporter'] then (import 'ups_exporter.jsonnet') else {})
-           + (if installModules['elastic-exporter'] then (import 'elasticsearch_exporter.jsonnet') else {});
+           + (if installModules['elastic-exporter'] then (import 'elasticsearch_exporter.jsonnet') else {})
+           // Load image versions last to override default from modules
+           + (import 'image_sources_versions.jsonnet');
 
 { ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) }
 { ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
diff --git a/smtp_server.jsonnet b/smtp_server.jsonnet
index 1d74218..610a9ed 100644
--- a/smtp_server.jsonnet
+++ b/smtp_server.jsonnet
@@ -3,6 +3,14 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
 {
   _config+:: {
     namespace: 'monitoring',
+
+    versions+:: {
+      smtpServer: 'v1.0.1',
+    },
+
+    imageRepos+:: {
+      smtpServer: 'carlosedp/docker-smtp',
+    },
   },
 
   smtpServer+:: {