diff --git a/envs/environment.yaml b/envs/environment.yaml
index e9439ab..9e2414c 100644
--- a/envs/environment.yaml
+++ b/envs/environment.yaml
@@ -12,8 +12,8 @@ dependencies:
   - xarray
   - netcdf4
   - cupy>=14
-  - cudf=26.8.0a894
-  - cuml=26.8.0a145
+  - cudf=26.8.0a982
+  - cuml=26.8.0a161
   - cuda-python
   - cupy-xarray
   - cuda-core
diff --git a/envs/pixi.toml b/envs/pixi.toml
index 1151a50..281364c 100644
--- a/envs/pixi.toml
+++ b/envs/pixi.toml
@@ -14,7 +14,7 @@ cupy = ">=14"
 cuda-python = "*"
 cupy-xarray = "*"
 cuda-core = "*"
-cudf = "26.8.0a894"
-cuml = "26.8.0a145"
+cudf = "26.8.0a982"
+cuml = "26.8.0a161"
 ipykernel = "*"
 rapids-cli = ">=0.2.0"
diff --git a/envs/pyproject.toml b/envs/pyproject.toml
index 71e53df..64682e6 100644
--- a/envs/pyproject.toml
+++ b/envs/pyproject.toml
@@ -12,8 +12,8 @@ dependencies = [
     "netCDF4",
     "cupy-xarray",
     "cuda-core[cu13]",
-    "cudf-cu13==26.8.0a894",
-    "cuml-cu13==26.8.0a145",
+    "cudf-cu13==26.8.0a982",
+    "cuml-cu13==26.8.0a161",
     "dask-cuda==26.8.0a13",
     "jupyterlab-nvdashboard>=0.15",
     "rapids-cli>=0.2.0",