diff --git a/pyproject.toml b/pyproject.toml
index 2e4adb1d..d5514159 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,8 +37,7 @@ classifiers = [
 ]
 dependencies = [
   "awkward >=2.5.1",
-  "dask >=2024.12.0;python_version>'3.9'",
-  "dask >=2023.04.0;python_version<'3.10'",
+  "dask >=2023.04.0",
   "cachetools",
   "typing_extensions >=4.8.0",
 ]
diff --git a/src/dask_awkward/layers/layers.py b/src/dask_awkward/layers/layers.py
index b5c54523..f994227a 100644
--- a/src/dask_awkward/layers/layers.py
+++ b/src/dask_awkward/layers/layers.py
@@ -5,9 +5,6 @@
 from typing import TYPE_CHECKING, Any, Literal, Protocol, TypeVar, Union, cast
 
 import dask
-
-_dask_uses_tasks = hasattr(dask, "_task_spec")
-
 from dask.blockwise import Blockwise, BlockwiseDepDict, blockwise_token
 from dask.highlevelgraph import MaterializedLayer
 from dask.layers import DataFrameTreeReduction
@@ -15,8 +12,10 @@
 
 from dask_awkward.utils import LazyInputsDict
 
+_dask_uses_tasks = hasattr(dask.blockwise, "Task")
+
 if _dask_uses_tasks:
-    from dask._task_spec import Task, TaskRef
+    from dask.blockwise import Task, TaskRef  # type: ignore
 
 if TYPE_CHECKING:
     from awkward import Array as AwkwardArray
diff --git a/src/dask_awkward/lib/core.py b/src/dask_awkward/lib/core.py
index a9567a56..6becf1b1 100644
--- a/src/dask_awkward/lib/core.py
+++ b/src/dask_awkward/lib/core.py
@@ -62,7 +62,7 @@
 )
 
 if _dask_uses_tasks:
-    from dask._task_spec import TaskRef
+    from dask.blockwise import TaskRef  # type: ignore
 
 if TYPE_CHECKING:
     from awkward.contents.content import Content
diff --git a/src/dask_awkward/lib/optimize.py b/src/dask_awkward/lib/optimize.py
index 4b9dd6cf..6f5b4a4c 100644
--- a/src/dask_awkward/lib/optimize.py
+++ b/src/dask_awkward/lib/optimize.py
@@ -22,7 +22,7 @@
 from dask_awkward.utils import first
 
 if _dask_uses_tasks:
-    from dask._task_spec import GraphNode, Task, TaskRef
+    from dask.blockwise import GraphNode, Task, TaskRef  # type: ignore
 
 if TYPE_CHECKING:
     from awkward._nplikes.typetracer import TypeTracerReport