diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b6314f7..2395868 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.12", "3.13"]
 
     runs-on: ${{ matrix.os }}
 
diff --git a/environment.yaml b/environment.yaml
index c909b85..b16e67d 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -12,26 +12,26 @@ name: ivy
 channels:
   - conda-forge
 dependencies:
-  - python >=3.10
+  - python >=3.13
   - bmi-geotiff
   - bmi-topography
   - bmipy
   - imageio
   - ipykernel
-  - landlab >=2.8
+  - landlab >=2.10
   - matplotlib
   - notebook
   - numpy
   - pandas
   - pip
   - pymt >=1.3
-  - pymt_child
-  - pymt_hydrotrend
+  # - pymt_child
+  # - pymt_hydrotrend
   - rasterio
   - scipy
-#  - terrainbento
+  - terrainbento
   - tqdm
   - nox
   - pip:
     - git+https://github.com/csdms/bmi-example-python.git
-    - git+https://github.com/terrainbento/terrainbento.git
+    # - git+https://github.com/terrainbento/terrainbento.git