diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 06b4289..40a30cb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -32,6 +32,10 @@ jobs:
           pip install uv
           uv venv
           uv pip install -r requirements-dev.lock
+      - name: Run tests
+        run: |
+          source .venv/bin/activate
+          pytest
   build:
     runs-on: ubuntu-latest
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index a96a273..6d57ab3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,9 +34,14 @@ classifiers = [
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
 [tool.rye]
 managed = true
-dev-dependencies = []
+dev-dependencies = [
+    "pytest~=8.0.1",
+]
 
 [tool.rye.scripts]
 setup = {chain = ["setup:sync", "setup:pre-commit"]}
diff --git a/requirements-dev.lock b/requirements-dev.lock
index 4f06c20..f07105f 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -4,9 +4,16 @@
 # last locked with the following flags:
 #   pre: false
 #   features: []
-#   all-features: false
+#   all-features: true
 #   with-sources: false
 
 -e file:.
 docutils==0.20.1
     # via rst-multi-refs
+iniconfig==2.0.0
+    # via pytest
+packaging==23.2
+    # via pytest
+pluggy==1.4.0
+    # via pytest
+pytest==8.0.1
diff --git a/requirements.lock b/requirements.lock
index 4f06c20..5e069c4 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -4,7 +4,7 @@
 # last locked with the following flags:
 #   pre: false
 #   features: []
-#   all-features: false
+#   all-features: true
 #   with-sources: false
 
 -e file:.
diff --git a/tests/.ruff.toml b/tests/.ruff.toml
new file mode 100644
index 0000000..d60ab9a
--- /dev/null
+++ b/tests/.ruff.toml
@@ -0,0 +1,4 @@
+extend = "../pyproject.toml"
+
+[lint]
+ignore = ["D100", "D103"]
diff --git a/tests/test_it.py b/tests/test_it.py
new file mode 100644
index 0000000..9a55af8
--- /dev/null
+++ b/tests/test_it.py
@@ -0,0 +1,2 @@
+def test_it():
+    import rst_multi_refs  # noqa