Index: wflow-py/environment.yml
===================================================================
diff -u -r7c3da5cdb1a9647b95fd0739610085adc3ac5f4a -rf75162ca3130c86c12b450004eb80c9540ccebc2
--- wflow-py/environment.yml	(.../environment.yml)	(revision 7c3da5cdb1a9647b95fd0739610085adc3ac5f4a)
+++ wflow-py/environment.yml	(.../environment.yml)	(revision f75162ca3130c86c12b450004eb80c9540ccebc2)
@@ -9,7 +9,7 @@
   - numpy>=1.12
   - scipy>=1.0
   - gdal>=2.2.4
-  - rasterio>=1.0a12
+  - rasterio=1.0a12
   - fiona>=1.7.11
   - netcdf4=1.3.1
   - pyproj>=1.9