diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 0f95b88..f5e227a 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -11,27 +11,24 @@ source:
 
 build:
   noarch: python
-  number: 0
+  number: 1
   script: python -m pip install . -vv
 
 requirements:
   host:
-    - python >=3.6,<3.10
+    - python >=3.6
     - pip
   run:
-    - python >=3.6,<3.10
-    - cartopy
+    - python >=3.6
+    - cartopy <0.20
     - cftime <1.5
     - cf-units =2.1.5
     - clize
     - dask
     - iris >=3.0,<3.1
     - netCDF4
-    - numpy
-    - python-dateutil
-    - python-stratify
-    - pytz
-    - scipy >=1.3,<1.7
+    - numpy <1.21
+    - scipy
     - sigtools
     - sphinx