diff --git a/pkg/reconciler/eventtransform/controller.go b/pkg/reconciler/eventtransform/controller.go
index 12750a24f32..83bc0ff2f56 100644
--- a/pkg/reconciler/eventtransform/controller.go
+++ b/pkg/reconciler/eventtransform/controller.go
@@ -36,6 +36,7 @@ import (
 	eventtransformeryinformer "knative.dev/eventing/pkg/client/injection/informers/eventing/v1alpha1/eventtransform"
 	sinkbindinginformer "knative.dev/eventing/pkg/client/injection/informers/sources/v1/sinkbinding/filtered"
 	"knative.dev/eventing/pkg/client/injection/reconciler/eventing/v1alpha1/eventtransform"
+	reconcilersource "knative.dev/eventing/pkg/reconciler/source"
 )
 
 const (
@@ -72,6 +73,10 @@ func NewController(
 	})
 	featureStore.WatchConfigs(cmw)
 
+	configWatcher := reconcilersource.WatchConfigurations(ctx, "eventtransform", cmw,
+		reconcilersource.WithTracing,
+	)
+
 	r := &Reconciler{
 		k8s:                      kubeclient.Get(ctx),
 		client:                   eventingclient.Get(ctx),
@@ -80,6 +85,7 @@ func NewController(
 		jsonataServiceLister:     jsonataServiceInformer.Lister(),
 		jsonataEndpointLister:    jsonataEndpointInformer.Lister(),
 		jsonataSinkBindingLister: jsonataSinkBindingInformer.Lister(),
+		configWatcher:            configWatcher,
 	}
 
 	impl := eventtransform.NewImpl(ctx, r, func(impl *controller.Impl) controller.Options {
diff --git a/pkg/reconciler/eventtransform/eventtransform.go b/pkg/reconciler/eventtransform/eventtransform.go
index 467a9f4a626..5ec3e237a99 100644
--- a/pkg/reconciler/eventtransform/eventtransform.go
+++ b/pkg/reconciler/eventtransform/eventtransform.go
@@ -40,6 +40,7 @@ import (
 	sources "knative.dev/eventing/pkg/apis/sources/v1"
 	eventingclient "knative.dev/eventing/pkg/client/clientset/versioned"
 	sourceslisters "knative.dev/eventing/pkg/client/listers/sources/v1"
+	reconcilersource "knative.dev/eventing/pkg/reconciler/source"
 )
 
 type Reconciler struct {
@@ -51,6 +52,8 @@ type Reconciler struct {
 	jsonataServiceLister     corelister.ServiceLister
 	jsonataEndpointLister    corelister.EndpointsLister
 	jsonataSinkBindingLister sourceslisters.SinkBindingLister
+
+	configWatcher *reconcilersource.ConfigWatcher
 }
 
 func (r *Reconciler) ReconcileKind(ctx context.Context, transform *eventing.EventTransform) reconciler.Event {
@@ -144,7 +147,7 @@ func (r *Reconciler) reconcileJsonataTransformationService(ctx context.Context,
 }
 
 func (r *Reconciler) reconcileJsonataTransformationDeployment(ctx context.Context, expression *corev1.ConfigMap, transform *eventing.EventTransform) error {
-	expected := jsonataDeployment(ctx, expression, transform)
+	expected := jsonataDeployment(ctx, r.configWatcher, expression, transform)
 
 	curr, err := r.jsonataDeploymentsLister.Deployments(expected.GetNamespace()).Get(expected.GetName())
 	if apierrors.IsNotFound(err) {
diff --git a/pkg/reconciler/eventtransform/resources_jsonata.go b/pkg/reconciler/eventtransform/resources_jsonata.go
index 23974bd1cff..9a2428b1ad4 100644
--- a/pkg/reconciler/eventtransform/resources_jsonata.go
+++ b/pkg/reconciler/eventtransform/resources_jsonata.go
@@ -34,6 +34,7 @@ import (
 
 	eventing "knative.dev/eventing/pkg/apis/eventing/v1alpha1"
 	sourcesv1 "knative.dev/eventing/pkg/apis/sources/v1"
+	reconcilersource "knative.dev/eventing/pkg/reconciler/source"
 )
 
 const (
@@ -71,7 +72,7 @@ func jsonataExpressionConfigMap(_ context.Context, transform *eventing.EventTran
 	return expression
 }
 
-func jsonataDeployment(_ context.Context, expression *corev1.ConfigMap, transform *eventing.EventTransform) appsv1.Deployment {
+func jsonataDeployment(_ context.Context, cw *reconcilersource.ConfigWatcher, expression *corev1.ConfigMap, transform *eventing.EventTransform) appsv1.Deployment {
 	image := os.Getenv("EVENT_TRANSFORM_JSONATA_IMAGE")
 	if image == "" {
 		panic("EVENT_TRANSFORM_JSONATA_IMAGE must be set")
@@ -106,12 +107,15 @@ func jsonataDeployment(_ context.Context, expression *corev1.ConfigMap, transfor
 						{
 							Name:  "jsonata-event-transform",
 							Image: image,
-							Env: []corev1.EnvVar{
-								{
-									Name:  "JSONATA_TRANSFORM_FILE_NAME",
-									Value: filepath.Join(JsonataExpressionPath, JsonataExpressionDataKey),
+							Env: append(
+								[]corev1.EnvVar{
+									{
+										Name:  "JSONATA_TRANSFORM_FILE_NAME",
+										Value: filepath.Join(JsonataExpressionPath, JsonataExpressionDataKey),
+									},
 								},
-							},
+								cw.ToEnvVars()...,
+							),
 							VolumeMounts: []corev1.VolumeMount{
 								{
 									Name:      expression.GetName(),