diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f3bb010..65540cf 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -46,8 +46,3 @@ jobs:
           MPLBACKEND: Agg
         run: |
           find examples -name "*.py" -print0 | xargs -0 -n1 python
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
diff --git a/pyproject.toml b/pyproject.toml
index 410552f..c03d262 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,9 +38,7 @@ dev = [
     "ruff>=0.10.0",
     "mypy>=1.5.0",
     "typing-extensions>=4.0.0",
-    "coverage[toml]>=5.5.0",
     "pytest>=6.2.4",
-    "pytest-cov>=4.0.0",
     "matplotlib>=3.4.0",
     "sphinx>=7.0",
     "sphinx-book-theme>=1.0",
@@ -115,25 +113,6 @@ ignore_missing_imports = true
 module = "pyscf.*"
 ignore_missing_imports = true
 
-[tool.coverage.run]
-branch = true
-source = [
-    "dyson",
-]
-
-[tool.coverage.report]
-exclude_lines = [
-    "pragma: no cover",
-    "def __repr__",
-    "def __str__",
-    "raise NotImplementedError",
-    "raise util.ModelNotImplemented",
-    "if __name__ == .__main__.:",
-]
-
-[tool.coverage.html]
-directory = "cov_html"
-
 [tool.pytest.ini_options]
 filterwarnings = [
     "ignore::DeprecationWarning",
@@ -142,4 +121,4 @@ testpaths = [
     "dyson",
     "tests",
 ]
-addopts = "--doctest-modules --cov=dyson"
+addopts = "--doctest-modules"