diff --git a/README.md b/README.md
index 954de5e..3496014 100644
--- a/README.md
+++ b/README.md
@@ -91,7 +91,10 @@ This implementation follows **Karnin–Lang–Liberty (2016)**: a space-optimal
 
 ## ✅ Tests
 
+Install the test dependencies and run the suite:
+
 ```bash
+python -m pip install -r kll_sketch/requirements-test.txt
 python -m pytest -q
 ```
 
diff --git a/kll_sketch/requirements-test.txt b/kll_sketch/requirements-test.txt
new file mode 100644
index 0000000..22d2f3a
--- /dev/null
+++ b/kll_sketch/requirements-test.txt
@@ -0,0 +1,3 @@
+pytest>=7.4
+hypothesis>=6.88
+pytest-cov>=4.1