diff --git a/poetry.lock b/poetry.lock
index eda0de4d..107259bd 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -304,11 +304,11 @@ python-versions = "*"
 
 [[package]]
 name = "numpy"
-version = "1.21.1"
+version = "1.19.5"
 description = "NumPy is the fundamental package for array computing with Python."
 category = "main"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.6"
 
 [[package]]
 name = "packaging"
@@ -700,7 +700,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.6.1"
-content-hash = "bfe544d03add5abeb768b562b2152a02f3f806567105241646b466488df801a3"
+content-hash = "815a2279b75b408bed0539ea7a58c7d14318cf31ac3305c5de8f47b13bbb45f3"
 
 [metadata.files]
 appdirs = [
@@ -908,34 +908,40 @@ nodeenv = [
     {file = "nodeenv-1.6.0.tar.gz", hash = "sha256:3ef13ff90291ba2a4a7a4ff9a979b63ffdd00a464dbe04acf0ea6471517a4c2b"},
 ]
 numpy = [
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+    {file = "numpy-1.19.5.zip", hash = "sha256:a76f502430dd98d7546e1ea2250a7360c065a5fdea52b2dffe8ae7180909b6f4"},
 ]
 packaging = [
     {file = "packaging-21.0-py3-none-any.whl", hash = "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"},
diff --git a/pyproject.toml b/pyproject.toml
index 6088e5c1..101570a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,10 +15,7 @@ repository = "https://github.com/Mause/duckdb_engine"
 python = ">=3.6.1"
 duckdb = ">=0.2.8"
 sqlalchemy = "^1.3.19"
-numpy = [
-    {version = ">=1.19.5", python = "==3.6"},
-    {version = ">=1.20.0", python = ">=3.7"}
-]
+numpy = "*"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.0.1"