Index: wflow-py/environment.yml
===================================================================
diff -u -re1371d5fab0b2773e93136f32e360aae4eb251ff -rb2e0b414623a553fe1d47da9df5f6813b24905b3
--- wflow-py/environment.yml	(.../environment.yml)	(revision e1371d5fab0b2773e93136f32e360aae4eb251ff)
+++ wflow-py/environment.yml	(.../environment.yml)	(revision b2e0b414623a553fe1d47da9df5f6813b24905b3)
@@ -10,7 +10,7 @@
   - numpy>=1.12
   - scipy>=1.0
   - gdal>=2.2
-  - rasterio>=1.0a12
+  - rasterio=1.0a12
   - fiona>=1.7.11
   - netcdf4=1.3.1
   - pyproj>=1.9