diff --git a/continuous_integration/environment.yaml b/continuous_integration/environment.yaml
index bc898cafe2..df10c1a7a8 100644
--- a/continuous_integration/environment.yaml
+++ b/continuous_integration/environment.yaml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 dependencies:
   - xarray!=2022.9.0
-  - dask
+  - dask<2025.1.0
   - distributed
   - dask-image
   - donfig
diff --git a/pyproject.toml b/pyproject.toml
index 9ed0eda02d..0dce58d5c8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ authors = [
 ]
 dependencies = [
     "platformdirs",
-    "dask[array]>=0.17.1",
+    "dask[array]>=0.17.1,<2025.1.0",
     "donfig",
     "numpy>=1.21",
     "packaging",