diff --git a/client/allocrunner/groupservice_hook.go b/client/allocrunner/groupservice_hook.go
index f7372b1bd..3e567537b 100644
--- a/client/allocrunner/groupservice_hook.go
+++ b/client/allocrunner/groupservice_hook.go
@@ -35,7 +35,7 @@ type groupServiceHook struct {
 	shutdownDelayCtx    context.Context
 
 	// namespace is the Nomad or Consul namespace in which service
-	// registrations will be made.
+	// registrations will be made. This field may be updated.
 	namespace string
 
 	// serviceRegWrapper is the handler wrapper that is used to perform service
@@ -163,6 +163,10 @@ func (h *groupServiceHook) Update(req *interfaces.RunnerUpdateRequest) error {
 	h.delay = shutdown
 	h.taskEnvBuilder.UpdateTask(req.Alloc, nil)
 
+	// An update may change the service provider, therefore we need to account
+	// for how namespaces work across providers also.
+	h.namespace = req.Alloc.ServiceProviderNamespace()
+
 	// Create new task services struct with those new values
 	newWorkloadServices := h.getWorkloadServices()
 
diff --git a/client/allocrunner/taskrunner/service_hook.go b/client/allocrunner/taskrunner/service_hook.go
index 872453527..5a29a82e6 100644
--- a/client/allocrunner/taskrunner/service_hook.go
+++ b/client/allocrunner/taskrunner/service_hook.go
@@ -61,7 +61,7 @@ type serviceHook struct {
 	taskEnv    *taskenv.TaskEnv
 
 	// namespace is the Nomad or Consul namespace in which service
-	// registrations will be made.
+	// registrations will be made. This field may be updated.
 	namespace string
 
 	// serviceRegWrapper is the handler wrapper that is used to perform service
@@ -173,6 +173,10 @@ func (h *serviceHook) updateHookFields(req *interfaces.TaskUpdateRequest) error
 	h.canary = canary
 	h.ports = req.Alloc.AllocatedResources.Shared.Ports
 
+	// An update may change the service provider, therefore we need to account
+	// for how namespaces work across providers also.
+	h.namespace = req.Alloc.ServiceProviderNamespace()
+
 	return nil
 }