diff --git a/mnemo_cards_backend/lib/database/database.dart b/mnemo_cards_backend/lib/database/database.dart
index f222448..c6616f2 100644
--- a/mnemo_cards_backend/lib/database/database.dart
+++ b/mnemo_cards_backend/lib/database/database.dart
@@ -200,7 +200,7 @@ class AppDatabase extends _$AppDatabase {
     
     // Auth indexes
     await customStatement('CREATE INDEX IF NOT EXISTS idx_tokens_user_id ON tokens(user_id)');
-    await customStatement('CREATE INDEX IF NOT EXISTS idx_tokens_expires ON tokens(expires) WHERE expires > NOW()');
+    await customStatement('CREATE INDEX IF NOT EXISTS idx_tokens_expires ON tokens(expires) WHERE expires > EXTRACT(EPOCH FROM NOW())::BIGINT');
     await customStatement('CREATE INDEX IF NOT EXISTS idx_refresh_tokens_user_id ON refresh_tokens(user_id)');
     await customStatement('CREATE INDEX IF NOT EXISTS idx_refresh_tokens_jti ON refresh_tokens(jti)');
     await customStatement('CREATE INDEX IF NOT EXISTS idx_refresh_tokens_not_blacklisted ON refresh_tokens(is_blacklisted) WHERE is_blacklisted = false');
@@ -225,7 +225,7 @@ class AppDatabase extends _$AppDatabase {
     
     // Subscriptions indexes
     await customStatement('CREATE INDEX IF NOT EXISTS idx_subscriptions_user_id ON user_subscriptions(user_id)');
-    await customStatement('CREATE INDEX IF NOT EXISTS idx_subscriptions_active ON user_subscriptions(finish) WHERE finish > NOW()');
+    await customStatement('CREATE INDEX IF NOT EXISTS idx_subscriptions_active ON user_subscriptions(finish) WHERE finish > EXTRACT(EPOCH FROM NOW())::BIGINT');
     
     // Tests indexes
     await customStatement('CREATE INDEX IF NOT EXISTS idx_test_questions_test_id ON test_questions(test_id)');