diff --git a/{{cookiecutter.repo_name}}/pyproject.toml b/{{cookiecutter.repo_name}}/pyproject.toml
index be73ff7..ef5703e 100644
--- a/{{cookiecutter.repo_name}}/pyproject.toml
+++ b/{{cookiecutter.repo_name}}/pyproject.toml
@@ -21,6 +21,7 @@ myst-parser = { version = "^1", optional = true }
 pytest = { version = "^7", optional = true }
 pytest-mock = { version = "^3", optional = true }
 pytest-cookies = { version = "^0", optional = true }
+pytest-cov = { version = "^5", optional = true }
 black = { version = "^24", optional = true }
 ruff = { version = "^0", optional = true}
 mypy = { version = "^1", optional = true }
@@ -38,6 +39,7 @@ dev = [
     "pytest",
     "pytest-mock",
     "pytest-cookies",
+    "pytest-cov",
     "black",
     "ruff",
     "mypy",