diff --git a/pyproject.toml b/pyproject.toml
index 655c54f1..48c61d29 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dependencies = [
     "annsel>=0.1.2",
     "click",
     "dask-image",
-    "dask>=2025.2.0",
+    "dask>=2025.2.0,<2026.1.2",
     "datashader",
     "fsspec[s3,http]",
     "geopandas>=0.14",