diff --git a/client/internal/updatemanager/manager.go b/client/internal/updatemanager/manager.go
index 48db70c43..91df097b3 100644
--- a/client/internal/updatemanager/manager.go
+++ b/client/internal/updatemanager/manager.go
@@ -61,11 +61,6 @@ func NewUpdateManager(statusRecorder *peer.Status) *UpdateManager {
 	return manager
 }
 
-func (u *UpdateManager) WithCustomVersionUpdate(versionUpdate UpdateInterface) *UpdateManager {
-	u.update = versionUpdate
-	return u
-}
-
 func (u *UpdateManager) Start(ctx context.Context) {
 	if u.cancel != nil {
 		log.Errorf("UpdateManager already started")
@@ -124,10 +119,12 @@ func (u *UpdateManager) Stop() {
 	}
 
 	u.cancel()
+	u.expectedVersionMutex.Lock()
 	if u.update != nil {
 		u.update.StopWatch()
 		u.update = nil
 	}
+	u.expectedVersionMutex.Unlock()
 
 	u.wg.Wait()
 }
@@ -151,6 +148,9 @@ func (u *UpdateManager) handleUpdate(ctx context.Context) {
 	var updateVersion *v.Version
 
 	u.expectedVersionMutex.Lock()
+	if u.update == nil {
+		return
+	}
 	expectedVersion := u.expectedVersion
 	useLatest := u.updateToLatestVersion
 	curLatestVersion := u.update.LatestVersion()
@@ -176,7 +176,7 @@ func (u *UpdateManager) handleUpdate(ctx context.Context) {
 		return
 	}
 
-	ctx, cancel := context.WithDeadline(ctx, time.Now().Add(time.Minute))
+	ctx, cancel := context.WithTimeout(ctx, time.Minute)
 	defer cancel()
 
 	u.lastTrigger = time.Now()
diff --git a/client/internal/updatemanager/manager_test.go b/client/internal/updatemanager/manager_test.go
index 85998cd09..f1a3cee30 100644
--- a/client/internal/updatemanager/manager_test.go
+++ b/client/internal/updatemanager/manager_test.go
@@ -8,6 +8,11 @@ import (
 	"time"
 )
 
+func (u *UpdateManager) WithCustomVersionUpdate(versionUpdate UpdateInterface) *UpdateManager {
+	u.update = versionUpdate
+	return u
+}
+
 type versionUpdateMock struct {
 	latestVersion *v.Version
 	onUpdate      func()
diff --git a/client/internal/updatemanager/update_js.go b/client/internal/updatemanager/update_js.go
new file mode 100644
index 000000000..b5085e11c
--- /dev/null
+++ b/client/internal/updatemanager/update_js.go
@@ -0,0 +1,10 @@
+//go:build js
+
+package updatemanager
+
+import "context"
+
+func triggerUpdate(ctx context.Context, targetVersion string) error {
+	// TODO: Implement
+	return nil
+}