diff --git a/conda/meta.yaml b/conda/meta.yaml
index 8f4f77f26aa028528b41aa667b035534c4b51e8a..d98327323af2fcd5bf0b471c320dca78adcf4bd5 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -8,17 +8,17 @@ source:
   # git_tag: develop
 
 build:
-  number: {{ environ.get('GIT_DESCRIBE_NUMBER', 'default') }}
+  number: {{ GIT_DESCRIBE_NUMBER }}
   preserve_egg_dir: True
 
 requirements:
   build:
     - setuptools
-    - python >=3.6,<3.8
+    - python >=3.6
   host:
-    - python >=3.6,<3.8
+    - python >=3.6
   run:
-    - python >=3.6,<3.8
+    - python >=3.6
     - treex
     - visu_core >=0.2
     - numpy