diff --git a/environment.yml b/environment.yml
index f5028b23e5a4572d8347072d5d07583b6dccf069..937ea8bbf87214f422931762b548132c184814ea 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,7 +2,7 @@ name: "base"
 channels:
   - defaults
 dependencies:
-  - xarray=0.17.1
+  - xarray==0.17.1
   # ML
   - tensorflow
   #- pytorch