diff --git a/poetry.lock b/poetry.lock
index 1972d805..ae4e7a7d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -5988,4 +5988,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<3.13"
-content-hash = "b0990840398d76e10272808cae061852f7c49577b1a16c1765f013089e875f33"
+content-hash = "2907d42f2ee753d171f1e8c5b38e29ccba8f19ee50e12c69e6bbfd2188fc0683"
diff --git a/pyproject.toml b/pyproject.toml
index c786c035..62bc47de 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,10 @@ airbyte-cdk = ">=7.3.9,<8.0.0"
 airbyte-protocol-models-pdv2 = "^0.13.0"
 click = "^8.1.7"
 cryptography = ">=44.0.0,<45.0.0"
-duckdb = "^1.1.0"
+# TODO: Remove duckdb upper bound once duckdb-engine fixes unhashable DuckDBPyType issue
+# See: https://github.com/Mause/duckdb_engine/issues/1338
+# See: https://github.com/airbytehq/PyAirbyte/issues/809
+duckdb = ">=1.1.0,<1.4.0"
 duckdb-engine = "^0.13.2"
 google-auth = ">=2.27.0,<3.0"
 google-cloud-bigquery = ">=3.12.0,<4.0"