diff --git a/TASKLIST.md b/TASKLIST.md
index 6b6346c..5a1be68 100644
--- a/TASKLIST.md
+++ b/TASKLIST.md
@@ -34,7 +34,7 @@ Prioritized, actionable tasks. Each task is small and completable in one session
 
 | Status | Task
 |--------|--------------------------------------------------------------
-| ☐      | Add SQLite WAL mode for better concurrency
+| ☑      | Add SQLite WAL mode for better concurrency
 | ☐      | Add /metrics endpoint skeleton (for future Prometheus)
 | ☐      | Add structured logging option via environment variable
 | ☐      | Optimize container build with multi-stage Containerfile
@@ -43,6 +43,7 @@ Prioritized, actionable tasks. Each task is small and completable in one session
 
 | Date       | Task
 |------------|--------------------------------------------------------------
+| 2024-12    | Add SQLite WAL mode for better concurrency
 | 2024-12    | Implement content-hash deduplication
 | 2024-12    | Add X-Proxy-Secret validation
 | 2024-12    | Add X-Request-ID tracing