diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 7b9eefb7..8ab3b535 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -31,6 +31,8 @@ jobs:
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
           repository-url: https://test.pypi.org/legacy/
+          skip-existing: true  # Allows repeating the action
+          attestations: false  # Otherwise an attestation is added to dist/
       - name: Install from TestPyPI
         timeout-minutes: 5
         shell: bash
diff --git a/pulser-core/pyproject.toml b/pulser-core/pyproject.toml
new file mode 100644
index 00000000..feb5d4d4
--- /dev/null
+++ b/pulser-core/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools >= 64"]
+build-backend = "setuptools.build_meta"
\ No newline at end of file
diff --git a/pulser-pasqal/pyproject.toml b/pulser-pasqal/pyproject.toml
new file mode 100644
index 00000000..feb5d4d4
--- /dev/null
+++ b/pulser-pasqal/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools >= 64"]
+build-backend = "setuptools.build_meta"
\ No newline at end of file
diff --git a/pulser-simulation/pyproject.toml b/pulser-simulation/pyproject.toml
new file mode 100644
index 00000000..feb5d4d4
--- /dev/null
+++ b/pulser-simulation/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools >= 64"]
+build-backend = "setuptools.build_meta"
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index edaf2ff0..a4abb7d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,4 +13,8 @@ filterwarnings = [
     "error",
     # Except these particular warnings, which are ignored
     'ignore:A duration of \d+ ns is not a multiple of:UserWarning',
-    ]
\ No newline at end of file
+    ]
+
+[build-system]
+requires = ["setuptools >= 64"]
+build-backend = "setuptools.build_meta"
\ No newline at end of file