diff --git a/pyproject.toml b/pyproject.toml
index 43b7231..51c5e9c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,6 @@ classifiers = [
 ]
 keywords = ["cython", "form-data", "forms", "http", "multipart", "streaming", "web"]
 dependencies = [
-    "smart-open>=7.0.5",
 ]
 
 [project.urls]
diff --git a/src/streaming_form_data/targets.py b/src/streaming_form_data/targets.py
index fc31f67..219c183 100644
--- a/src/streaming_form_data/targets.py
+++ b/src/streaming_form_data/targets.py
@@ -2,7 +2,6 @@ import hashlib
 from pathlib import Path
 from typing import Callable, List, Optional, Union
 
-import smart_open  # type: ignore
 
 
 class BaseTarget:
@@ -313,6 +312,7 @@ class SmartOpenTarget(BaseTarget):
             mode:
                 The mode in which the file should be opened
         """
+        raise Exception("Nixpkgs: disabled")
 
         super().__init__(**kwargs)
 
diff --git a/tests/test_targets.py b/tests/test_targets.py
index 4aa6b57..d768e2f 100644
--- a/tests/test_targets.py
+++ b/tests/test_targets.py
@@ -2,8 +2,6 @@ import os.path
 import tempfile
 
 import pytest
-from moto import mock_aws
-import boto3
 
 from streaming_form_data.targets import (
     BaseTarget,
@@ -305,6 +303,7 @@ def mock_client():
         yield client
 
 
+@pytest.mark.skip
 def test_s3_upload(mock_client):
     test_key = "test.txt"
     path = f"s3://{BUCKET_NAME}/{test_key}"