diff --git a/controllers/tls/manager.go b/controllers/tls/manager.go
index e2cdd5a2..315dd8a7 100644
--- a/controllers/tls/manager.go
+++ b/controllers/tls/manager.go
@@ -239,7 +239,7 @@ func (r *Reconciler) updateTenantCustomResourceDefinition(ctx context.Context, n
 						},
 						CABundle: caBundle,
 					},
-					ConversionReviewVersions: []string{"v1alpha1", "v1beta1", "v1beta2"},
+					ConversionReviewVersions: []string{"v1beta1", "v1beta2"},
 				},
 			}