diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 1960f2a5..6a7f87ba 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -49,7 +49,7 @@ dependencies = [
     "python-dotenv>=1.2.2,<2",
     "pyjwt[crypto]>=2.12,<3",
     "python-multipart>=0.0.31,<1",
-    "redis[hiredis]>=7.1,<8",
+    "redis[hiredis]>=7.1,<9",
     "scikit-learn>=1.8,<2",
     "sqlalchemy>=2.0.46,<2.1",
     "sqlalchemy-crud-plus>=1.3,<2",
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 6a31c929..c7448166 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -269,7 +269,7 @@ pyyaml==6.0.3
     # via
     #   langchain-core
     #   uvicorn
-redis==7.4.1
+redis==8.1.0
     # via unigraph-backend (backend/pyproject.toml)
 regex==2026.7.19
     # via tiktoken