In a small bowl, whisk together soy sauce, lemon juice, olive oil, minced garlic, honey, and black pepper until well combined.
Place salmon fillets in a resealable plastic bag or shallow dish.
Pour the marinade over the salmon, ensuring all pieces are evenly coated.
Seal the bag or cover the dish and marinate in the refrigerator for at least 30 minutes, but no more than 1 hour to prevent the fish from becoming too soft.