Fix environment solve failures

lukelbd · lukelbd · commit aa1c655dda73 · 2021-08-18T13:29:34.000-06:00
diff --git a/ci/environment.yml b/ci/environment.yml
@@ -10,12 +10,12 @@ name: proplot-dev
 channels:
   - conda-forge
 dependencies:
-  - python==3.6
+  - python>=3.6
   - numpy
   - xarray
   - pandas
   - matplotlib==3.2.1
-  - cartopy
+  - cartopy==0.18.0
   - basemap
   - pandoc
   - ipykernel
diff --git a/docs/environment.yml b/docs/environment.yml
@@ -15,7 +15,7 @@ dependencies:
   - xarray
   - pandas
   - matplotlib==3.2.1
-  - cartopy
+  - cartopy==0.18.0
   - basemap
   - pandoc
   - ipykernel
