diff --git a/.travis.yml b/.travis.yml
index 337447dbf69..8e1866de8d4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,17 +17,9 @@ matrix:
   - env:
     - CONDA_ENV=py36
     - EXTRA_FLAGS="--run-flaky --run-network-tests"
-  - env: CONDA_ENV=py36-netcdf4-dev
-    addons:
-      apt_packages:
-        - libhdf5-serial-dev
-        - netcdf-bin
-        - libnetcdf-dev
   - env: CONDA_ENV=py36-dask-dev
   - env: CONDA_ENV=py36-pandas-dev
   - env: CONDA_ENV=py36-bottleneck-dev
-  - env: CONDA_ENV=py36-condaforge-rc
-  - env: CONDA_ENV=py36-pynio-dev
   - env: CONDA_ENV=py36-rasterio
   - env: CONDA_ENV=py36-zarr-dev
   - env: CONDA_ENV=docs
@@ -38,25 +30,16 @@ matrix:
   - env:
     - CONDA_ENV=py36
     - EXTRA_FLAGS="--run-flaky --run-network-tests"
-  - env: CONDA_ENV=py36-netcdf4-dev
-    addons:
-      apt_packages:
-        - libhdf5-serial-dev
-        - netcdf-bin
-        - libnetcdf-dev
   - env: CONDA_ENV=py36-pandas-dev
   - env: CONDA_ENV=py36-bottleneck-dev
-  - env: CONDA_ENV=py36-condaforge-rc
-  - env: CONDA_ENV=py36-pynio-dev
   - env: CONDA_ENV=py36-zarr-dev
 
 before_install:
-  - wget http://repo.continuum.io/miniconda/Miniconda3-3.16.0-Linux-x86_64.sh -O miniconda.sh;
+  - wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
   - bash miniconda.sh -b -p $HOME/miniconda
   - export PATH="$HOME/miniconda/bin:$PATH"
   - hash -r
   - conda config --set always_yes yes --set changeps1 no --set show_channel_urls true
-  - conda update -q conda
   - conda info -a
 
 install:
diff --git a/ci/install_python.ps1 b/ci/install_python.ps1
index 63c476e65e5..e9cfae01bde 100644
--- a/ci/install_python.ps1
+++ b/ci/install_python.ps1
@@ -2,16 +2,16 @@
 # Authors: Olivier Grisel, Jonathan Helmus and Kyle Kastner
 # License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
 
-$MINICONDA_URL = "http://repo.continuum.io/miniconda/"
+$MINICONDA_URL = "https://repo.anaconda.com/miniconda/"
 $BASE_URL = "https://www.python.org/ftp/python/"
 
 
 function DownloadMiniconda ($python_version, $platform_suffix) {
     $webclient = New-Object System.Net.WebClient
-    if ($python_version -match "3.6") {
-        $filename = "Miniconda3-latest-Windows-" + $platform_suffix + ".exe"
-    } else {
+    if ($python_version -match "2.7") {
         $filename = "Miniconda2-latest-Windows-" + $platform_suffix + ".exe"
+    } else {
+        $filename = "Miniconda3-latest-Windows-" + $platform_suffix + ".exe"
     }
     $url = $MINICONDA_URL + $filename
 
diff --git a/ci/requirements-py35.yml b/ci/requirements-py35.yml
index 29f4bb020fc..a71434865cc 100644
--- a/ci/requirements-py35.yml
+++ b/ci/requirements-py35.yml
@@ -10,8 +10,8 @@ dependencies:
   - matplotlib=1.5
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - flake8
   - numpy
diff --git a/ci/requirements-py36-bottleneck-dev.yml b/ci/requirements-py36-bottleneck-dev.yml
index bdf0349b5c0..3f08648be32 100644
--- a/ci/requirements-py36-bottleneck-dev.yml
+++ b/ci/requirements-py36-bottleneck-dev.yml
@@ -11,8 +11,8 @@ dependencies:
   - matplotlib
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - flake8
   - numpy
diff --git a/ci/requirements-py36-condaforge-rc.yml b/ci/requirements-py36-condaforge-rc.yml
deleted file mode 100644
index ba980deeeea..00000000000
--- a/ci/requirements-py36-condaforge-rc.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-name: test_env
-channels:
-  - conda-forge/label/rc
-  - conda-forge
-dependencies:
-  - python=3.6
-  - cftime
-  - dask
-  - distributed
-  - h5py
-  - h5netcdf
-  - matplotlib
-  - netcdf4
-  - pytest
-  - pytest-env
-  - pytest-cov
-  - coveralls
-  - flake8
-  - numpy
-  - pandas
-  - seaborn
-  - scipy
-  - toolz
diff --git a/ci/requirements-py36-dask-dev.yml b/ci/requirements-py36-dask-dev.yml
index 20b10fe29ee..32d01765439 100644
--- a/ci/requirements-py36-dask-dev.yml
+++ b/ci/requirements-py36-dask-dev.yml
@@ -9,8 +9,8 @@ dependencies:
   - matplotlib
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - flake8
   - numpy
diff --git a/ci/requirements-py36-hypothesis.yml b/ci/requirements-py36-hypothesis.yml
index c5c228095a4..8066a53b6bc 100644
--- a/ci/requirements-py36-hypothesis.yml
+++ b/ci/requirements-py36-hypothesis.yml
@@ -10,8 +10,8 @@ dependencies:
   - matplotlib
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - hypothesis
   - flake8
diff --git a/ci/requirements-py36-netcdf4-dev.yml b/ci/requirements-py36-netcdf4-dev.yml
deleted file mode 100644
index 2616a113fa4..00000000000
--- a/ci/requirements-py36-netcdf4-dev.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-name: test_env
-channels:
-  - conda-forge
-dependencies:
-  - python=3.6
-  - cython
-  - dask
-  - distributed
-  - h5py
-  - h5netcdf
-  - matplotlib
-  - pytest
-  - pytest-env
-  - pytest-cov
-  - coveralls
-  - flake8
-  - numpy
-  - pandas
-  - scipy
-  - toolz
-  - pip:
-    - git+https://github.com/Unidata/netcdf4-python.git
-    - git+https://github.com/Unidata/cftime.git
diff --git a/ci/requirements-py36-pandas-dev.yml b/ci/requirements-py36-pandas-dev.yml
index 2b914f746ab..bc0e5d0de09 100644
--- a/ci/requirements-py36-pandas-dev.yml
+++ b/ci/requirements-py36-pandas-dev.yml
@@ -12,8 +12,8 @@ dependencies:
   - matplotlib
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - flake8
   - numpy
diff --git a/ci/requirements-py36-pynio-dev.yml b/ci/requirements-py36-pynio-dev.yml
deleted file mode 100644
index b8987611a6e..00000000000
--- a/ci/requirements-py36-pynio-dev.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: test_env
-channels:
-  - conda-forge
-  - conda-forge/label/dev
-dependencies:
-  - python=3.6
-  - cftime
-  - dask
-  - distributed
-  - h5py
-  - h5netcdf
-  - matplotlib
-  - netcdf4
-  - pynio=dev
-  - pytest
-  - pytest-env
-  - pytest-cov
-  - coveralls
-  - numpy
-  - pandas
-  - scipy
-  - seaborn
-  - toolz
-  - rasterio
-  - bottleneck
-  - pydap
diff --git a/ci/requirements-py36-rasterio.yml b/ci/requirements-py36-rasterio.yml
index dda9ea8cd29..e5ef1d29777 100644
--- a/ci/requirements-py36-rasterio.yml
+++ b/ci/requirements-py36-rasterio.yml
@@ -11,8 +11,8 @@ dependencies:
   - matplotlib
   - netcdf4
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - numpy
   - pandas
diff --git a/ci/requirements-py36-zarr-dev.yml b/ci/requirements-py36-zarr-dev.yml
index 9966cf74815..94bdc50fbfe 100644
--- a/ci/requirements-py36-zarr-dev.yml
+++ b/ci/requirements-py36-zarr-dev.yml
@@ -8,8 +8,8 @@ dependencies:
   - distributed
   - matplotlib
   - pytest
-  - pytest-env
   - pytest-cov
+  - pytest-env
   - coveralls
   - flake8
   - numpy