diff --git a/pyproject.toml b/pyproject.toml
index 31ce272..a4c5cb6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,6 +50,9 @@ changelog = "https://github.com/pytest-dev/pytest-github-actions-annotate-failur
 [project.entry-points.pytest11]
 pytest_github_actions_annotate_failures = "pytest_github_actions_annotate_failures.plugin"
 
+[project.optional-dependencies]
+test = ["packaging"]
+
 
 [tool.ruff.lint]
 extend-select = [
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 84fa678..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-packaging==20.4
diff --git a/tox.ini b/tox.ini
index 4c1b823..3e51181 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,8 +18,8 @@ PYTEST_MAJOR_VERSION =
     8: pytest8
 
 [testenv]
+extras = test
 deps =
-    -rrequirements.txt
     pytest6: pytest>=6.0.0,<7.0.0
     pytest7: pytest>=7.0.0,<7.4.0
     pytest8: pytest>=8.0.0,<9.0.0