diff --git a/.golangci.yml b/.golangci.yml
index cc41c8c15..a6608ce9e 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -8,6 +8,7 @@ linters:
   - depguard
   - godot
   - testifylint
+  - unconvert
 
 issues:
   exclude-rules:
diff --git a/pkg/prometheus/promcfg.go b/pkg/prometheus/promcfg.go
index c74104b9f..6e7cc23de 100644
--- a/pkg/prometheus/promcfg.go
+++ b/pkg/prometheus/promcfg.go
@@ -636,7 +636,7 @@ func (cg *ConfigGenerator) appendAlertingConfig(
 	alertmanagerConfigs := cg.generateAlertmanagerConfig(alerting, cpf.APIServerConfig, store)
 
 	var additionalAlertmanagerConfigsYaml []yaml.MapSlice
-	if err := yaml.Unmarshal([]byte(additionalAlertmanagerConfigs), &additionalAlertmanagerConfigsYaml); err != nil {
+	if err := yaml.Unmarshal(additionalAlertmanagerConfigs, &additionalAlertmanagerConfigsYaml); err != nil {
 		return nil, fmt.Errorf("unmarshalling additional alertmanager configs failed")
 	}
 	alertmanagerConfigs = append(alertmanagerConfigs, additionalAlertmanagerConfigsYaml...)
@@ -657,7 +657,7 @@ func (cg *ConfigGenerator) appendAlertingConfig(
 	}
 
 	var additionalAlertRelabelConfigsYaml []yaml.MapSlice
-	if err := yaml.Unmarshal([]byte(additionalAlertRelabelConfigs), &additionalAlertRelabelConfigsYaml); err != nil {
+	if err := yaml.Unmarshal(additionalAlertRelabelConfigs, &additionalAlertRelabelConfigsYaml); err != nil {
 		return nil, fmt.Errorf("unmarshalling additional alerting relabel configs failed: %w", err)
 	}
 	alertRelabelConfigs = append(alertRelabelConfigs, additionalAlertRelabelConfigsYaml...)
@@ -1667,7 +1667,7 @@ func (cg *ConfigGenerator) generateAdditionalScrapeConfigs(
 	shards int32,
 ) ([]yaml.MapSlice, error) {
 	var additionalScrapeConfigsYaml []yaml.MapSlice
-	err := yaml.Unmarshal([]byte(additionalScrapeConfigs), &additionalScrapeConfigsYaml)
+	err := yaml.Unmarshal(additionalScrapeConfigs, &additionalScrapeConfigsYaml)
 	if err != nil {
 		return nil, fmt.Errorf("unmarshalling additional scrape configs failed: %w", err)
 	}
diff --git a/pkg/thanos/statefulset_test.go b/pkg/thanos/statefulset_test.go
index 9eda5649d..213ff0bf3 100644
--- a/pkg/thanos/statefulset_test.go
+++ b/pkg/thanos/statefulset_test.go
@@ -1069,7 +1069,7 @@ func TestThanosVersion(t *testing.T) {
 		{"0.29.0-0123", "", true},
 		{"0.29.0.DEV", "", true},
 	} {
-		t.Run(string(tc.version), func(t *testing.T) {
+		t.Run(tc.version, func(t *testing.T) {
 			sset, err := makeStatefulSet(&monitoringv1.ThanosRuler{
 				Spec: monitoringv1.ThanosRulerSpec{
 					QueryEndpoints: emptyQueryEndpoints,
diff --git a/test/framework/prometheus.go b/test/framework/prometheus.go
index 7a7d27f1e..44caaf08e 100644
--- a/test/framework/prometheus.go
+++ b/test/framework/prometheus.go
@@ -325,7 +325,7 @@ func (f *Framework) ScalePrometheusAndWaitUntilReady(ctx context.Context, name,
 		ns,
 		monitoringv1.PrometheusSpec{
 			CommonPrometheusFields: monitoringv1.CommonPrometheusFields{
-				Replicas: ptr.To(int32(replicas)),
+				Replicas: ptr.To(replicas),
 			},
 		},
 	)