diff --git a/changelog.d/16702.misc b/changelog.d/16702.misc
new file mode 100644
index 000000000..d97d0a11b
--- /dev/null
+++ b/changelog.d/16702.misc
@@ -0,0 +1 @@
+Raise poetry-core upper bound to <=1.8.1. This allows contributors to import Synapse after `poetry install`ing with Poetry 1.6 and above. Contributed by Mo Balaa.
diff --git a/pyproject.toml b/pyproject.toml
index b2a4fd7a2..b0ccf82e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -382,7 +382,7 @@ furo = ">=2022.12.7,<2024.0.0"
 # runtime errors caused by build system changes.
 # We are happy to raise these upper bounds upon request,
 # provided we check that it's safe to do so (i.e. that CI passes).
-requires = ["poetry-core>=1.1.0,<=1.7.0", "setuptools_rust>=1.3,<=1.8.1"]
+requires = ["poetry-core>=1.1.0,<=1.8.1", "setuptools_rust>=1.3,<=1.8.1"]
 build-backend = "poetry.core.masonry.api"