diff --git a/controllers/argocd/image_updater.go b/controllers/argocd/image_updater.go
index 870578f71..9aa2013da 100644
--- a/controllers/argocd/image_updater.go
+++ b/controllers/argocd/image_updater.go
@@ -422,6 +422,18 @@ func (r *ReconcileArgoCD) reconcileImageUpdaterDeployment(cr *argoproj.ArgoCD, s
 			InitialDelaySeconds: 15,
 			PeriodSeconds:       20,
 		},
+		ReadinessProbe: &corev1.Probe{
+			ProbeHandler: corev1.ProbeHandler{
+				HTTPGet: &corev1.HTTPGetAction{
+					Path: "/readyz",
+					Port: intstr.IntOrString{
+						IntVal: int32(8081),
+					},
+				},
+			},
+			InitialDelaySeconds: 5,
+			PeriodSeconds:       10,
+		},
 		SecurityContext: argoutil.DefaultSecurityContext(),
 		VolumeMounts: []corev1.VolumeMount{
 			{
diff --git a/controllers/argocd/image_updater_test.go b/controllers/argocd/image_updater_test.go
index ea70ab391..205137d55 100644
--- a/controllers/argocd/image_updater_test.go
+++ b/controllers/argocd/image_updater_test.go
@@ -292,6 +292,18 @@ func TestReconcileImageUpdater_CreateDeployments(t *testing.T) {
 			InitialDelaySeconds: 15,
 			PeriodSeconds:       20,
 		},
+		ReadinessProbe: &v1.Probe{
+			ProbeHandler: v1.ProbeHandler{
+				HTTPGet: &v1.HTTPGetAction{
+					Path: "/readyz",
+					Port: intstr.IntOrString{
+						IntVal: int32(8081),
+					},
+				},
+			},
+			InitialDelaySeconds: 5,
+			PeriodSeconds:       10,
+		},
 	}}
 
 	if diff := cmp.Diff(want, deployment.Spec.Template.Spec.Containers); diff != "" {