diff --git a/cluster_tools/cluster_tools/executors/dask.py b/cluster_tools/cluster_tools/executors/dask.py
index 7aa66f152..05267b778 100644
--- a/cluster_tools/cluster_tools/executors/dask.py
+++ b/cluster_tools/cluster_tools/executors/dask.py
@@ -87,11 +87,13 @@ def map_to_futures(
     def map(
         self,
         fn: Callable[[_S], _T],
-        args: Iterable[_S],  # TODO change: allow more than one arg per call,
-        timeout=None,
-        chunksize=1,
-    ):
-        return list(super().map(fn, args, timeout=timeout, chunksize=chunksize))
+        *iterables: Iterable[Any],
+        timeout: Optional[float] = None,
+        chunksize: int = 1,
+    ) -> Iterator[_T]:
+        return iter(
+            list(super().map(fn, *iterables, timeout=timeout, chunksize=chunksize))
+        )
 
     def forward_log(self, fut: "Future[_T]") -> _T:
         return fut.result()
diff --git a/cluster_tools/cluster_tools/executors/multiprocessing_.py b/cluster_tools/cluster_tools/executors/multiprocessing_.py
index d02e55d2c..2d65873b3 100644
--- a/cluster_tools/cluster_tools/executors/multiprocessing_.py
+++ b/cluster_tools/cluster_tools/executors/multiprocessing_.py
@@ -86,8 +86,8 @@ def __init__(
             self._mp_logging_handler_pool = _MultiprocessingLoggingHandlerPool()
 
     @classmethod
-    def as_completed(cls, futures: List[Future[_T]]) -> Iterator[Future[_T]]:
-        return futures.as_completed(futures)
+    def as_completed(cls, futs: List[Future[_T]]) -> Iterator[Future[_T]]:
+        return futures.as_completed(futs)
 
     def submit(  # type: ignore[override]
         self,
diff --git a/cluster_tools/cluster_tools/schedulers/cluster_executor.py b/cluster_tools/cluster_tools/schedulers/cluster_executor.py
index 662d438f4..12d50f13e 100644
--- a/cluster_tools/cluster_tools/schedulers/cluster_executor.py
+++ b/cluster_tools/cluster_tools/schedulers/cluster_executor.py
@@ -141,8 +141,8 @@ def __init__(
             self.meta_data["logging_setup_fn"] = kwargs["logging_setup_fn"]
 
     @classmethod
-    def as_completed(cls, futures: List[Future[_T]]) -> Iterator[Future[_T]]:
-        return futures.as_completed(futures)
+    def as_completed(cls, futs: List[Future[_T]]) -> Iterator[Future[_T]]:
+        return futures.as_completed(futs)
 
     @classmethod
     @abstractmethod
diff --git a/webknossos/poetry.lock b/webknossos/poetry.lock
index 8abdd3c77..5e2cec449 100644
--- a/webknossos/poetry.lock
+++ b/webknossos/poetry.lock
@@ -579,7 +579,8 @@ files = []
 develop = true
 
 [package.dependencies]
-kubernetes = "^23.3.0"
+dask = {version = "^2023.9.1", extras = ["distributed"], markers = "python_version >= \"3.9\""}
+kubernetes = "^27.2.0"
 typing-extensions = "^4.4.0"
 
 [package.source]
@@ -729,30 +730,33 @@ files = [
 
 [[package]]
 name = "dask"
-version = "2022.2.0"
+version = "2023.9.1"
 description = "Parallel PyData with Task Scheduling"
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.9"
 files = [
-    {file = "dask-2022.2.0-py3-none-any.whl", hash = "sha256:feaf838faa23150faadaeb2483e8612cfb8fed51f62e635a1a6dd55d1d793ba4"},
-    {file = "dask-2022.2.0.tar.gz", hash = "sha256:cefb5c63d1e26f6dfa650ddd1eb1a53e0cef623141b838820c6b34e6534ea409"},
+    {file = "dask-2023.9.1-py3-none-any.whl", hash = "sha256:2b1085ef3a54cb8b96cb8651a803e644d77d992198bda2954715fd4fd6cb434c"},
+    {file = "dask-2023.9.1.tar.gz", hash = "sha256:782825bbe52c23c5698166aa0cf95cfed02dcb9afa59b0814b69ae58e1bc9686"},
 ]
 
 [package.dependencies]
-cloudpickle = ">=1.1.1"
-fsspec = ">=0.6.0"
+click = ">=8.0"
+cloudpickle = ">=1.5.0"
+distributed = {version = "2023.9.1", optional = true, markers = "extra == \"distributed\""}
+fsspec = ">=2021.09.0"
+importlib-metadata = ">=4.13.0"
 packaging = ">=20.0"
-partd = ">=0.3.10"
+partd = ">=1.2.0"
 pyyaml = ">=5.3.1"
-toolz = ">=0.8.2"
+toolz = ">=0.10.0"
 
 [package.extras]
-array = ["numpy (>=1.18)"]
-complete = ["bokeh (>=2.1.1)", "distributed (==2022.02.0)", "jinja2", "numpy (>=1.18)", "pandas (>=1.0)"]
-dataframe = ["numpy (>=1.18)", "pandas (>=1.0)"]
-diagnostics = ["bokeh (>=2.1.1)", "jinja2"]
-distributed = ["distributed (==2022.02.0)"]
-test = ["pre-commit", "pytest", "pytest-rerunfailures", "pytest-xdist"]
+array = ["numpy (>=1.21)"]
+complete = ["dask[array,dataframe,diagnostics,distributed]", "lz4 (>=4.3.2)", "pyarrow (>=7.0)"]
+dataframe = ["dask[array]", "pandas (>=1.3)"]
+diagnostics = ["bokeh (>=2.4.2)", "jinja2 (>=2.10.3)"]
+distributed = ["distributed (==2023.9.1)"]
+test = ["pandas[test]", "pre-commit", "pytest", "pytest-cov", "pytest-rerunfailures", "pytest-timeout", "pytest-xdist"]
 
 [[package]]
 name = "dill"
@@ -768,6 +772,34 @@ files = [
 [package.extras]
 graph = ["objgraph (>=1.7.2)"]
 
+[[package]]
+name = "distributed"
+version = "2023.9.1"
+description = "Distributed scheduler for Dask"
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "distributed-2023.9.1-py3-none-any.whl", hash = "sha256:ce40397544945dadc218df858e1f0caa4ce95bb7fb432bf0d7358f977543f8db"},
+    {file = "distributed-2023.9.1.tar.gz", hash = "sha256:8a786539c7c5b211f2a8443d912659fb9611e2162e6195465d6f56596983addf"},
+]
+
+[package.dependencies]
+click = ">=8.0"
+cloudpickle = ">=1.5.0"
+dask = "2023.9.1"
+jinja2 = ">=2.10.3"
+locket = ">=1.0.0"
+msgpack = ">=1.0.0"
+packaging = ">=20.0"
+psutil = ">=5.7.2"
+pyyaml = ">=5.3.1"
+sortedcontainers = ">=2.0.5"
+tblib = ">=1.6.0"
+toolz = ">=0.10.0"
+tornado = ">=6.0.4"
+urllib3 = ">=1.24.3"
+zict = ">=3.0.0"
+
 [[package]]
 name = "entrypoints"
 version = "0.4"
@@ -1192,6 +1224,25 @@ pyav = ["av"]
 test = ["fsspec[github]", "pytest", "pytest-cov"]
 tifffile = ["tifffile"]
 
+[[package]]
+name = "importlib-metadata"
+version = "6.8.0"
+description = "Read metadata from Python packages"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "importlib_metadata-6.8.0-py3-none-any.whl", hash = "sha256:3ebb78df84a805d7698245025b975d9d67053cd94c79245ba4b3eb694abe68bb"},
+    {file = "importlib_metadata-6.8.0.tar.gz", hash = "sha256:dbace7892d8c0c4ac1ad096662232f831d4e64f4c4545bd53016a3e9d4654743"},
+]
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
+perf = ["ipython"]
+testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-mypy (>=0.9.1)", "pytest-perf (>=0.9.2)", "pytest-ruff"]
+
 [[package]]
 name = "importlib-resources"
 version = "5.12.0"
@@ -1369,23 +1420,23 @@ requests = ">=2.31.0,<3.0.0"
 
 [[package]]
 name = "kubernetes"
-version = "23.6.0"
+version = "27.2.0"
 description = "Kubernetes python client"
 optional = false
 python-versions = ">=3.6"
 files = [
-    {file = "kubernetes-23.6.0-py2.py3-none-any.whl", hash = "sha256:dd58e286a53071bc8e32041f07f3c2236b3ed8ca5b9f57794a5077358f7ccb06"},
-    {file = "kubernetes-23.6.0.tar.gz", hash = "sha256:cadb1cd7c44eae5b39b50316313343c0f2aff94529f067ec2ba44d38411158e3"},
+    {file = "kubernetes-27.2.0-py2.py3-none-any.whl", hash = "sha256:0f9376329c85cf07615ed6886bf9bf21eb1cbfc05e14ec7b0f74ed8153cd2815"},
+    {file = "kubernetes-27.2.0.tar.gz", hash = "sha256:d479931c6f37561dbfdf28fc5f46384b1cb8b28f9db344ed4a232ce91990825a"},
 ]
 
 [package.dependencies]
 certifi = ">=14.05.14"
 google-auth = ">=1.0.1"
+oauthlib = ">=3.2.2"
 python-dateutil = ">=2.5.3"
 pyyaml = ">=5.4.1"
 requests = "*"
 requests-oauthlib = "*"
-setuptools = ">=21.0.0"
 six = ">=1.9.0"
 urllib3 = ">=1.24.2"
 websocket-client = ">=0.32.0,<0.40.0 || >0.40.0,<0.41.dev0 || >=0.43.dev0"
@@ -1393,6 +1444,21 @@ websocket-client = ">=0.32.0,<0.40.0 || >0.40.0,<0.41.dev0 || >=0.43.dev0"
 [package.extras]
 adal = ["adal (>=1.0.2)"]
 
+[[package]]
+name = "lazy-loader"
+version = "0.3"
+description = "lazy_loader"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "lazy_loader-0.3-py3-none-any.whl", hash = "sha256:1e9e76ee8631e264c62ce10006718e80b2cfc74340d17d1031e0f84af7478554"},
+    {file = "lazy_loader-0.3.tar.gz", hash = "sha256:3b68898e34f5b2a29daaaac172c6555512d0f32074f147e2254e4a6d9d838f37"},
+]
+
+[package.extras]
+lint = ["pre-commit (>=3.3)"]
+test = ["pytest (>=7.4)", "pytest-cov (>=4.1)"]
+
 [[package]]
 name = "lazy-object-proxy"
 version = "1.9.0"
@@ -1529,6 +1595,78 @@ files = [
     {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
 ]
 
+[[package]]
+name = "msgpack"
+version = "1.0.5"
+description = "MessagePack serializer"
+optional = false
+python-versions = "*"
+files = [
+    {file = "msgpack-1.0.5-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:525228efd79bb831cf6830a732e2e80bc1b05436b086d4264814b4b2955b2fa9"},
+    {file = "msgpack-1.0.5-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:4f8d8b3bf1ff2672567d6b5c725a1b347fe838b912772aa8ae2bf70338d5a198"},
+    {file = "msgpack-1.0.5-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:cdc793c50be3f01106245a61b739328f7dccc2c648b501e237f0699fe1395b81"},
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 [[package]]
 name = "scikit-learn"
@@ -2829,22 +2966,6 @@ dev = ["click", "doit (>=0.36.0)", "flake8", "mypy", "pycodestyle", "pydevtool",
 doc = ["matplotlib (>2)", "numpydoc", "pydata-sphinx-theme (==0.9.0)", "sphinx (!=4.1.0)", "sphinx-design (>=0.2.0)"]
 test = ["asv", "gmpy2", "mpmath", "pooch", "pytest", "pytest-cov", "pytest-timeout", "pytest-xdist", "scikit-umfpack", "threadpoolctl"]
 
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-
 [[package]]
 name = "shellingham"
 version = "1.5.0.post1"
@@ -2914,6 +3035,17 @@ files = [
 [package.extras]
 widechars = ["wcwidth"]
 
+[[package]]
+name = "tblib"
+version = "2.0.0"
+description = "Traceback serialization library."
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "tblib-2.0.0-py3-none-any.whl", hash = "sha256:9100bfa016b047d5b980d66e7efed952fbd20bd85b56110aaf473cb97d18709a"},
+    {file = "tblib-2.0.0.tar.gz", hash = "sha256:a6df30f272c08bf8be66e0775fad862005d950a6b8449b94f7c788731d70ecd7"},
+]
+
 [[package]]
 name = "termcolor"
 version = "2.3.0"
@@ -2989,6 +3121,26 @@ files = [
     {file = "toolz-0.12.0.tar.gz", hash = "sha256:88c570861c440ee3f2f6037c4654613228ff40c93a6c25e0eba70d17282c6194"},
 ]
 
+[[package]]
+name = "tornado"
+version = "6.3.3"
+description = "Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed."
+optional = false
+python-versions = ">= 3.8"
+files = [
+    {file = "tornado-6.3.3-cp38-abi3-macosx_10_9_universal2.whl", hash = "sha256:502fba735c84450974fec147340016ad928d29f1e91f49be168c0a4c18181e1d"},
+    {file = "tornado-6.3.3-cp38-abi3-macosx_10_9_x86_64.whl", hash = "sha256:805d507b1f588320c26f7f097108eb4023bbaa984d63176d1652e184ba24270a"},
+    {file = "tornado-6.3.3-cp38-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:1bd19ca6c16882e4d37368e0152f99c099bad93e0950ce55e71daed74045908f"},
+    {file = "tornado-6.3.3-cp38-abi3-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:7ac51f42808cca9b3613f51ffe2a965c8525cb1b00b7b2d56828b8045354f76a"},
+    {file = "tornado-6.3.3-cp38-abi3-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:71a8db65160a3c55d61839b7302a9a400074c9c753040455494e2af74e2501f2"},
+    {file = "tornado-6.3.3-cp38-abi3-musllinux_1_1_aarch64.whl", hash = "sha256:ceb917a50cd35882b57600709dd5421a418c29ddc852da8bcdab1f0db33406b0"},
+    {file = "tornado-6.3.3-cp38-abi3-musllinux_1_1_i686.whl", hash = "sha256:7d01abc57ea0dbb51ddfed477dfe22719d376119844e33c661d873bf9c0e4a16"},
+    {file = "tornado-6.3.3-cp38-abi3-musllinux_1_1_x86_64.whl", hash = "sha256:9dc4444c0defcd3929d5c1eb5706cbe1b116e762ff3e0deca8b715d14bf6ec17"},
+    {file = "tornado-6.3.3-cp38-abi3-win32.whl", hash = "sha256:65ceca9500383fbdf33a98c0087cb975b2ef3bfb874cb35b8de8740cf7f41bd3"},
+    {file = "tornado-6.3.3-cp38-abi3-win_amd64.whl", hash = "sha256:22d3c2fa10b5793da13c807e6fc38ff49a4f6e1e3868b0a6f4164768bb8e20f5"},
+    {file = "tornado-6.3.3.tar.gz", hash = "sha256:e7d8db41c0181c80d76c982aacc442c0783a2c54d6400fe028954201a2e032fe"},
+]
+
 [[package]]
 name = "typer"
 version = "0.9.0"
@@ -3341,6 +3493,17 @@ numcodecs = ">=0.11.0,<0.12.0"
 numpy = ">=1.22,<2.0"
 zstandard = ">=0.21.0,<0.22.0"
 
+[[package]]
+name = "zict"
+version = "3.0.0"
+description = "Mutable mapping tools"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "zict-3.0.0-py2.py3-none-any.whl", hash = "sha256:5796e36bd0e0cc8cf0fbc1ace6a68912611c1dbd74750a3f3026b9b9d6a327ae"},
+    {file = "zict-3.0.0.tar.gz", hash = "sha256:e321e263b6a97aafc0790c3cfb3c04656b7066e6738c37fffcca95d803c9fba5"},
+]
+
 [[package]]
 name = "zipp"
 version = "3.15.0"
@@ -3425,4 +3588,4 @@ tifffile = ["pims", "tifffile"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8,<3.12"
-content-hash = "ba688a2cbb67f84d8455b56deeb90426e1107aa8b1d9546623ea8322ce3821df"
+content-hash = "d5e11010fa1b0240d933643baba9933afbb32e333d4f9c9739d9968c0aec385a"
diff --git a/webknossos/pyproject.toml b/webknossos/pyproject.toml
index 89474d4a3..35de7e57a 100644
--- a/webknossos/pyproject.toml
+++ b/webknossos/pyproject.toml
@@ -46,7 +46,7 @@ psutil = "^5.6.7"
 python-dateutil = "^2.8.0"
 python-dotenv = "^0.19.0"
 rich = "^10.9.0"
-scikit-image = "^0.19.3"
+scikit-image = "^0.21.0"
 scikit-learn = "^1.0.1"
 scipy = "^1.9.0"
 typer = {extras = ["all"], version = "^0.9.0"}
@@ -76,7 +76,7 @@ all = ["pims","tifffile","imagecodecs","JPype1","pylibCZIrw","zarrita"]
 [tool.poetry.dev-dependencies]
 # autoflake
 black = "^23.1.0"
-dask = "2022.02.0"
+dask = { version = "^2023.9.1", python = ">=3.9", extras = ["distributed"] }
 hypothesis = "^6.35.0"
 icecream = "^2.1.1"
 inducoapi = "^2.0.2"
diff --git a/webknossos/tests/test_examples.py b/webknossos/tests/test_examples.py
index 860dfe750..a7daf85a7 100644
--- a/webknossos/tests/test_examples.py
+++ b/webknossos/tests/test_examples.py
@@ -1,5 +1,6 @@
 import inspect
 import os
+import sys
 import warnings
 from contextlib import contextmanager, nullcontext
 from pathlib import Path
@@ -275,6 +276,7 @@ def test_remote_datasets() -> None:
 
 @pytest.mark.block_network(allowed_hosts=[".*"])
 @pytest.mark.vcr(ignore_hosts=["webknossos.org", "data-humerus.webknossos.org"])
+@pytest.mark.skipif(sys.version_info <= (3, 9))
 def test_zarr_and_dask() -> None:
     import examples.zarr_and_dask as example