diff --git a/requirements.txt b/requirements.txt
index 869c3883..c6b883c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -70,4 +70,4 @@ cachetools>=7.2.0
 # ── Distributed cache (Redis-backed, optional; in-process fallback when REDIS_URL unset)
 redis>=8.1.0
 # test-only: in-memory Redis used by the cache test suite
-fakeredis>=2.38.0
+fakeredis>=2.40.0