diff --git a/environment.yml b/environment.yml
index 2a400f313c91d12f2d1c9449c215f57722c95ad1..9953d565f9bb93e44929722c420314e64703a941 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,6 +2,6 @@ name: mat
 channels:
   - conda-forge
 dependencies:
-  - python=3.5
+  - python=3.6
   - matlab_kernel
   - dask-labextension