diff --git a/storage/memory/memory.go b/storage/memory/memory.go
index 54f6251..0edfd1b 100644
--- a/storage/memory/memory.go
+++ b/storage/memory/memory.go
@@ -32,7 +32,7 @@ func (m *memory) Get() (*v1.Secret, error) {
 }
 
 func (m *memory) Update(secret *v1.Secret) error {
-	if m.secret == nil || m.secret.ResourceVersion != secret.ResourceVersion {
+	if m.secret == nil || m.secret.ResourceVersion == "" || m.secret.ResourceVersion != secret.ResourceVersion {
 		if m.storage != nil {
 			if err := m.storage.Update(secret); err != nil {
 				return err