diff --git a/benchmarks/README.md b/benchmarks/README.md
index 6370fdb8..ab878247 100644
--- a/benchmarks/README.md
+++ b/benchmarks/README.md
@@ -44,7 +44,7 @@ transforms, but the explicit warmup makes the intent visible.
 Prerequisites:
 
 ```bash
-pip install asv psutil
+pip install ".[benchmark]"
 ```
 
 Run benchmarks against the current environment:
diff --git a/benchmarks/asv.conf.json b/benchmarks/asv.conf.json
index 1e26be0d..19c9771c 100644
--- a/benchmarks/asv.conf.json
+++ b/benchmarks/asv.conf.json
@@ -19,6 +19,6 @@
     "build_cache_size": 2,
     "default_benchmark_timeout": 500,
     "regressions_thresholds": {
-        ".*": 0.3
+        ".*": 0.2
     }
 }
diff --git a/benchmarks/requirements.txt b/benchmarks/requirements.txt
new file mode 100644
index 00000000..020002ad
--- /dev/null
+++ b/benchmarks/requirements.txt
@@ -0,0 +1,2 @@
+psutil
+scipy>=1.10
diff --git a/pyproject.toml b/pyproject.toml
index ab9b8dc1..6bcf72ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ readme = {file = "README.md", content-type = "text/markdown"}
 requires-python = ">=3.10,<3.15"
 
 [project.optional-dependencies]
-benchmark = ["asv>=0.6", "psutil"]
+benchmark = ["asv>=0.6", "psutil", "scipy>=1.10"]
 scipy_interface = ["scipy>=1.10", "mkl-service"]
 test = ["pytest", "scipy>=1.10", "mkl-service"]