diff --git a/ci/requirements-py36.yml b/ci/requirements-py36.yml
index 7523b14608b..311e4a275a8 100644
--- a/ci/requirements-py36.yml
+++ b/ci/requirements-py36.yml
@@ -20,14 +20,14 @@ dependencies:
   - scipy
   - seaborn
   - toolz
-  # - rasterio  # xref #2683
+  - rasterio
   - bottleneck
   - zarr
   - pseudonetcdf>=3.0.1
   - eccodes
   - cdms2
-# - pynio  # xref #2683
-# - iris>=1.10  # xref #2683
+  - pynio
+  - iris>=1.10
   - pydap
   - lxml
   - pip: