diff --git a/conda/environment.yaml b/conda/environment.yaml
index 6b4707a..50210f2 100644
--- a/conda/environment.yaml
+++ b/conda/environment.yaml
@@ -2,6 +2,7 @@ name: mopper_env
 channels:
   - conda-forge
   - coecms
+  - nodefaults
 
 dependencies:
   - anaconda-client
diff --git a/conda/meta.yaml b/conda/meta.yaml
index e92248b..9f985c0 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -35,22 +35,14 @@ requirements:
         - pyyaml
         - cftime
         - python-dateutil
+        - metpy
+        - gsw
 
 test:
-  #imports:
-  #  - mopdb
-  #  - mopper
   source_files:
     - tests
     - tests/testdata
   requires:
-    - cmor
-    - xarray
-    - numpy
-    - dask
-    - pyyaml
-    - cftime
-    - python-dateutil
     - pytest
     - pyfakefs
     - coverage
diff --git a/conda/testenv.yaml b/conda/testenv.yaml
index a66ea8a..c77a6fb 100644
--- a/conda/testenv.yaml
+++ b/conda/testenv.yaml
@@ -1,20 +1,21 @@
 name: testenv
 channels:
   - conda-forge
+  - nodefaults
 
 dependencies:
   - cmor
   - click
-  - conda-forge::xarray
+  - xarray
   - numpy
   - dask
   - pyyaml
   - cftime
   - python-dateutil
+  - metpy
+  - gsw
   - pytest 
   - coverage 
   - codecov
   - pyfakefs
   - ruff
-  - metpy
-  - gsw