diff --git a/environment.yml b/environment.yml
index 7a52e8f5103190543fb90ea3b08aee6a3b47bab3..6610a030b026248bb85385fd181b5371ff9db240 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 
 dependencies:
-- python=3
+- python=3.7
 - nose
 - nose-cov
 - paramiko