diff --git a/pyproject.toml b/pyproject.toml
index 26cd4b150..ad2f359e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ dependencies = [
   "python-ipware~=3.0.0",
   "python-magic~=0.4.27",
   "rapidfuzz~=3.14.5",
-  "redis[hiredis]~=5.2.1",
+  "redis[hiredis]~=6.4.0",
   "regex>=2026.7.19",
   "scikit-learn~=1.9.0",
   "sentence-transformers>=5.6.1",
diff --git a/uv.lock b/uv.lock
index 6c096951b..b5df4af34 100644
--- a/uv.lock
+++ b/uv.lock
@@ -3070,7 +3070,7 @@ requires-dist = [
     { name = "python-ipware", specifier = "~=3.0.0" },
     { name = "python-magic", specifier = "~=0.4.27" },
     { name = "rapidfuzz", specifier = "~=3.14.5" },
-    { name = "redis", extras = ["hiredis"], specifier = "~=5.2.1" },
+    { name = "redis", extras = ["hiredis"], specifier = "~=6.4.0" },
     { name = "regex", specifier = ">=2026.7.19" },
     { name = "scikit-learn", specifier = "~=1.9.0" },
     { name = "sentence-transformers", specifier = ">=5.6.1" },
@@ -4150,14 +4150,14 @@ wheels = [
 
 [[package]]
 name = "redis"
-version = "5.2.1"
+version = "6.4.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "async-timeout", marker = "python_full_version < '3.11.3'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/47/da/d283a37303a995cd36f8b92db85135153dc4f7a8e4441aa827721b442cfb/redis-5.2.1.tar.gz", hash = "sha256:16f2e22dff21d5125e8481515e386711a34cbec50f0e44413dd7d9c060a54e0f", size = 4608355, upload-time = "2024-12-06T09:50:41.956Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/0d/d6/e8b92798a5bd67d659d51a18170e91c16ac3b59738d91894651ee255ed49/redis-6.4.0.tar.gz", hash = "sha256:b01bc7282b8444e28ec36b261df5375183bb47a07eb9c603f284e89cbc5ef010", size = 4647399, upload-time = "2025-08-07T08:10:11.441Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/3c/5f/fa26b9b2672cbe30e07d9a5bdf39cf16e3b80b42916757c5f92bca88e4ba/redis-5.2.1-py3-none-any.whl", hash = "sha256:ee7e1056b9aea0f04c6c2ed59452947f34c4940ee025f5dd83e6a6418b6989e4", size = 261502, upload-time = "2024-12-06T09:50:39.656Z" },
+    { url = "https://files.pythonhosted.org/packages/e8/02/89e2ed7e85db6c93dfa9e8f691c5087df4e3551ab39081a4d7c6d1f90e05/redis-6.4.0-py3-none-any.whl", hash = "sha256:f0544fa9604264e9464cdf4814e7d4830f74b165d52f2a330a760a88dd248b7f", size = 279847, upload-time = "2025-08-07T08:10:09.84Z" },
 ]
 
 [package.optional-dependencies]