diff --git a/doc/changes/unreleased.md b/doc/changes/unreleased.md
index 0009c163..77b50d2f 100644
--- a/doc/changes/unreleased.md
+++ b/doc/changes/unreleased.md
@@ -4,3 +4,4 @@
 - Relock dependencies
 - Update abatilo/actions-poetry from `v2.1.4` to `v3.0.0`
 - Update actions/setup-python from `v2` to `v5`
+- Added build system section to project `pyproject.toml`
diff --git a/pyproject.toml b/pyproject.toml
index a17ea5aa..ff7d3770 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,9 @@
+[build-system]
+requires = [
+    "poetry>=1.0.0",
+]
+build-backend = "poetry.core.masonry.api"
+
 [tool.poetry]
 name = "exasol-bucketfs"
 packages  = [