diff --git a/repo2docker/buildpacks/conda/environment.frozen.yml b/repo2docker/buildpacks/conda/environment.frozen.yml
index 85d01107..6503fae1 100644
--- a/repo2docker/buildpacks/conda/environment.frozen.yml
+++ b/repo2docker/buildpacks/conda/environment.frozen.yml
@@ -1,29 +1,34 @@
 # AUTO GENERATED FROM environment.py-3.6.yml, DO NOT MANUALLY MODIFY
-# Frozen on 2018-05-08 20:22:20 UTC
+# Frozen on 2018-07-16 23:09:21 UTC
 name: r2d
 channels:
   - conda-forge
   - defaults
   - conda-forge/label/broken
 dependencies:
+  - attrs=18.1.0=py_1
+  - automat=0.7.0=py36_0
   - backcall=0.1.0=py_0
   - bleach=2.1.3=py_0
   - ca-certificates=2018.4.16=0
   - certifi=2018.4.16=py36_0
+  - constantly=15.1.0=py_0
   - decorator=4.3.0=py_0
   - entrypoints=0.2.3=py36_1
-  - gmp=6.1.2=0
+  - gmp=6.1.2=hfc679d8_0
   - html5lib=1.0.1=py_0
+  - hyperlink=17.3.1=py_0
+  - incremental=17.5.0=py_0
   - ipykernel=4.8.2=py36_0
-  - ipython=6.3.1=py36_0
-  - ipython_genutils=0.2.0=py36_0
-  - ipywidgets=7.1.1=py36_0
-  - jedi=0.12.0=py36_0
-  - jinja2=2.10=py36_0
+  - ipython=6.4.0=py36_0
+  - ipython_genutils=0.2.0=py_1
+  - ipywidgets=7.2.1=py36_1
+  - jedi=0.12.1=py36_0
+  - jinja2=2.10=py_1
   - jsonschema=2.6.0=py36_1
-  - jupyter_client=5.2.3=py36_0
+  - jupyter_client=5.2.3=py_1
   - jupyter_core=4.4.0=py_0
-  - jupyterlab=0.31.5=py36_1
+  - jupyterlab=0.32.1=py36_0
   - jupyterlab_launcher=0.10.5=py36_0
   - libsodium=1.0.16=0
   - markupsafe=1.0=py36_0
@@ -31,24 +36,25 @@ dependencies:
   - nbconvert=5.3.1=py_1
   - nbformat=4.4.0=py36_0
   - ncurses=5.9=10
-  - notebook=5.4.1=py36_0
+  - notebook=5.6.0=py36_0
   - openssl=1.0.2o=0
-  - pandoc=2.2=0
-  - pandocfilters=1.4.2=py36_0
-  - parso=0.2.0=py_0
-  - pexpect=4.5.0=py36_0
+  - pandoc=2.2.2=0
+  - pandocfilters=1.4.2=py_1
+  - parso=0.3.0=py_0
+  - pexpect=4.6.0=py36_0
   - pickleshare=0.7.4=py36_0
   - pip=9.0.3=py36_0
+  - prometheus_client=0.2.0=py36_0
   - prompt_toolkit=1.0.15=py36_0
-  - ptyprocess=0.5.2=py36_0
-  - pygments=2.2.0=py36_0
+  - ptyprocess=0.6.0=py36_0
+  - pygments=2.2.0=py_1
   - python=3.6.5=1
-  - python-dateutil=2.7.2=py_0
-  - pyzmq=17.0.0=py36_4
+  - python-dateutil=2.7.3=py_0
+  - pyzmq=17.1.0=py36hae99301_0
   - readline=7.0=0
   - send2trash=1.5.0=py_0
-  - setuptools=39.1.0=py36_0
-  - simplegeneric=0.8.1=py36_0
+  - setuptools=40.0.0=py36_0
+  - simplegeneric=0.8.1=py_1
   - six=1.11.0=py36_1
   - sqlite=3.20.1=2
   - terminado=0.8.1=py36_0
@@ -56,14 +62,18 @@ dependencies:
   - tk=8.6.7=0
   - tornado=4.5.3=py36_0
   - traitlets=4.3.2=py36_0
-  - wcwidth=0.1.7=py36_0
+  - wcwidth=0.1.7=py_1
   - webencodings=0.5=py36_0
-  - wheel=0.31.0=py36_0
+  - wheel=0.31.1=py36_0
   - widgetsnbextension=3.2.1=py36_0
   - xz=5.2.3=0
-  - zeromq=4.2.5=1
-  - zlib=1.2.11=0
+  - zeromq=4.2.5=hfc679d8_3
+  - zlib=1.2.11=h470a237_3
+  - zope.interface=4.5.0=py36h470a237_0
+  - libgcc-ng=7.2.0=hdf63c60_3
+  - libstdcxx-ng=7.2.0=hdf63c60_3
+  - twisted=17.5.0=py36_0
   - pip:
-    - nteract-on-jupyter==1.7.0
+    - nteract-on-jupyter==1.8.1
 prefix: /opt/conda/envs/r2d
 
diff --git a/repo2docker/buildpacks/conda/environment.py-2.7.frozen.yml b/repo2docker/buildpacks/conda/environment.py-2.7.frozen.yml
index a8af048d..8254da52 100644
--- a/repo2docker/buildpacks/conda/environment.py-2.7.frozen.yml
+++ b/repo2docker/buildpacks/conda/environment.py-2.7.frozen.yml
@@ -1,5 +1,5 @@
 # AUTO GENERATED FROM environment.py-2.7.yml, DO NOT MANUALLY MODIFY
-# Frozen on 2018-05-08 20:15:09 UTC
+# Frozen on 2018-07-16 23:03:29 UTC
 name: r2d
 channels:
   - conda-forge
@@ -14,27 +14,27 @@ dependencies:
   - decorator=4.3.0=py_0
   - enum34=1.1.6=py27_1
   - ipykernel=4.8.2=py27_0
-  - ipython=5.6.0=py27_0
-  - ipython_genutils=0.2.0=py27_0
-  - jupyter_client=5.2.3=py27_0
+  - ipython=5.7.0=py27_0
+  - ipython_genutils=0.2.0=py_1
+  - jupyter_client=5.2.3=py_1
   - jupyter_core=4.4.0=py_0
   - libsodium=1.0.16=0
   - ncurses=5.9=10
   - openssl=1.0.2o=0
   - pathlib2=2.3.2=py27_0
-  - pexpect=4.5.0=py27_0
+  - pexpect=4.6.0=py27_0
   - pickleshare=0.7.4=py27_0
   - pip=9.0.3=py27_0
   - prompt_toolkit=1.0.15=py27_0
-  - ptyprocess=0.5.2=py27_0
-  - pygments=2.2.0=py27_0
+  - ptyprocess=0.6.0=py27_0
+  - pygments=2.2.0=py_1
   - python=2.7.15=0
-  - python-dateutil=2.7.2=py_0
-  - pyzmq=17.0.0=py27_4
+  - python-dateutil=2.7.3=py_0
+  - pyzmq=17.1.0=py27hae99301_0
   - readline=7.0=0
-  - scandir=1.7=py27_0
-  - setuptools=39.1.0=py27_0
-  - simplegeneric=0.8.1=py27_0
+  - scandir=1.7=py27h470a237_1
+  - setuptools=40.0.0=py27_0
+  - simplegeneric=0.8.1=py_1
   - singledispatch=3.4.0.3=py27_0
   - six=1.11.0=py27_1
   - sqlite=3.20.1=2
@@ -42,10 +42,12 @@ dependencies:
   - tk=8.6.7=0
   - tornado=4.5.3=py27_0
   - traitlets=4.3.2=py27_0
-  - wcwidth=0.1.7=py27_0
-  - wheel=0.31.0=py27_0
-  - zeromq=4.2.5=1
-  - zlib=1.2.11=0
+  - wcwidth=0.1.7=py_1
+  - wheel=0.31.1=py27_0
+  - zeromq=4.2.5=hfc679d8_3
+  - zlib=1.2.11=h470a237_3
+  - libgcc-ng=7.2.0=hdf63c60_3
+  - libstdcxx-ng=7.2.0=hdf63c60_3
   - pip:
     - backports.ssl-match-hostname==3.5.0.1
 prefix: /opt/conda/envs/r2d
diff --git a/repo2docker/buildpacks/conda/environment.py-3.5.frozen.yml b/repo2docker/buildpacks/conda/environment.py-3.5.frozen.yml
index 01183a6e..e80f5e3f 100644
--- a/repo2docker/buildpacks/conda/environment.py-3.5.frozen.yml
+++ b/repo2docker/buildpacks/conda/environment.py-3.5.frozen.yml
@@ -1,29 +1,34 @@
 # AUTO GENERATED FROM environment.py-3.5.yml, DO NOT MANUALLY MODIFY
-# Frozen on 2018-05-08 20:18:13 UTC
+# Frozen on 2018-07-16 23:05:45 UTC
 name: r2d
 channels:
   - conda-forge
   - defaults
   - conda-forge/label/broken
 dependencies:
+  - attrs=18.1.0=py_1
+  - automat=0.7.0=py35_0
   - backcall=0.1.0=py_0
   - bleach=2.1.3=py_0
   - ca-certificates=2018.4.16=0
   - certifi=2018.4.16=py35_0
+  - constantly=15.1.0=py_0
   - decorator=4.3.0=py_0
   - entrypoints=0.2.3=py35_1
-  - gmp=6.1.2=0
+  - gmp=6.1.2=hfc679d8_0
   - html5lib=1.0.1=py_0
+  - hyperlink=17.3.1=py_0
+  - incremental=17.5.0=py_0
   - ipykernel=4.8.2=py35_0
-  - ipython=6.3.1=py35_0
-  - ipython_genutils=0.2.0=py35_0
-  - ipywidgets=7.1.1=py35_0
-  - jedi=0.12.0=py35_0
-  - jinja2=2.10=py35_0
+  - ipython=6.4.0=py35_0
+  - ipython_genutils=0.2.0=py_1
+  - ipywidgets=7.2.1=py35_1
+  - jedi=0.12.1=py35_0
+  - jinja2=2.10=py_1
   - jsonschema=2.6.0=py35_1
-  - jupyter_client=5.2.3=py35_0
+  - jupyter_client=5.2.3=py_1
   - jupyter_core=4.4.0=py_0
-  - jupyterlab=0.31.5=py35_1
+  - jupyterlab=0.32.1=py35_0
   - jupyterlab_launcher=0.10.5=py35_0
   - libsodium=1.0.16=0
   - markupsafe=1.0=py35_0
@@ -31,24 +36,25 @@ dependencies:
   - nbconvert=5.3.1=py_1
   - nbformat=4.4.0=py35_0
   - ncurses=5.9=10
-  - notebook=5.4.1=py35_0
+  - notebook=5.6.0=py35_0
   - openssl=1.0.2o=0
-  - pandoc=2.2=0
-  - pandocfilters=1.4.2=py35_0
-  - parso=0.2.0=py_0
-  - pexpect=4.5.0=py35_0
+  - pandoc=2.2.2=0
+  - pandocfilters=1.4.2=py_1
+  - parso=0.3.0=py_0
+  - pexpect=4.6.0=py35_0
   - pickleshare=0.7.4=py35_0
   - pip=9.0.3=py35_0
+  - prometheus_client=0.2.0=py35_0
   - prompt_toolkit=1.0.15=py35_0
-  - ptyprocess=0.5.2=py35_0
-  - pygments=2.2.0=py35_0
+  - ptyprocess=0.6.0=py35_0
+  - pygments=2.2.0=py_1
   - python=3.5.5=1
-  - python-dateutil=2.7.2=py_0
-  - pyzmq=17.0.0=py35_4
+  - python-dateutil=2.7.3=py_0
+  - pyzmq=17.1.0=py35hae99301_0
   - readline=7.0=0
   - send2trash=1.5.0=py_0
-  - setuptools=39.1.0=py35_0
-  - simplegeneric=0.8.1=py35_0
+  - setuptools=40.0.0=py35_0
+  - simplegeneric=0.8.1=py_1
   - six=1.11.0=py35_1
   - sqlite=3.20.1=2
   - terminado=0.8.1=py35_0
@@ -56,14 +62,18 @@ dependencies:
   - tk=8.6.7=0
   - tornado=4.5.3=py35_0
   - traitlets=4.3.2=py35_0
-  - wcwidth=0.1.7=py35_0
+  - wcwidth=0.1.7=py_1
   - webencodings=0.5=py35_0
-  - wheel=0.31.0=py35_0
+  - wheel=0.31.1=py35_0
   - widgetsnbextension=3.2.1=py35_0
   - xz=5.2.3=0
-  - zeromq=4.2.5=1
-  - zlib=1.2.11=0
+  - zeromq=4.2.5=hfc679d8_3
+  - zlib=1.2.11=h470a237_3
+  - zope.interface=4.5.0=py35h470a237_0
+  - libgcc-ng=7.2.0=hdf63c60_3
+  - libstdcxx-ng=7.2.0=hdf63c60_3
+  - twisted=17.5.0=py35_0
   - pip:
-    - nteract-on-jupyter==1.7.0
+    - nteract-on-jupyter==1.8.1
 prefix: /opt/conda/envs/r2d
 
diff --git a/repo2docker/buildpacks/conda/environment.py-3.6.frozen.yml b/repo2docker/buildpacks/conda/environment.py-3.6.frozen.yml
index 85d01107..6503fae1 100644
--- a/repo2docker/buildpacks/conda/environment.py-3.6.frozen.yml
+++ b/repo2docker/buildpacks/conda/environment.py-3.6.frozen.yml
@@ -1,29 +1,34 @@
 # AUTO GENERATED FROM environment.py-3.6.yml, DO NOT MANUALLY MODIFY
-# Frozen on 2018-05-08 20:22:20 UTC
+# Frozen on 2018-07-16 23:09:21 UTC
 name: r2d
 channels:
   - conda-forge
   - defaults
   - conda-forge/label/broken
 dependencies:
+  - attrs=18.1.0=py_1
+  - automat=0.7.0=py36_0
   - backcall=0.1.0=py_0
   - bleach=2.1.3=py_0
   - ca-certificates=2018.4.16=0
   - certifi=2018.4.16=py36_0
+  - constantly=15.1.0=py_0
   - decorator=4.3.0=py_0
   - entrypoints=0.2.3=py36_1
-  - gmp=6.1.2=0
+  - gmp=6.1.2=hfc679d8_0
   - html5lib=1.0.1=py_0
+  - hyperlink=17.3.1=py_0
+  - incremental=17.5.0=py_0
   - ipykernel=4.8.2=py36_0
-  - ipython=6.3.1=py36_0
-  - ipython_genutils=0.2.0=py36_0
-  - ipywidgets=7.1.1=py36_0
-  - jedi=0.12.0=py36_0
-  - jinja2=2.10=py36_0
+  - ipython=6.4.0=py36_0
+  - ipython_genutils=0.2.0=py_1
+  - ipywidgets=7.2.1=py36_1
+  - jedi=0.12.1=py36_0
+  - jinja2=2.10=py_1
   - jsonschema=2.6.0=py36_1
-  - jupyter_client=5.2.3=py36_0
+  - jupyter_client=5.2.3=py_1
   - jupyter_core=4.4.0=py_0
-  - jupyterlab=0.31.5=py36_1
+  - jupyterlab=0.32.1=py36_0
   - jupyterlab_launcher=0.10.5=py36_0
   - libsodium=1.0.16=0
   - markupsafe=1.0=py36_0
@@ -31,24 +36,25 @@ dependencies:
   - nbconvert=5.3.1=py_1
   - nbformat=4.4.0=py36_0
   - ncurses=5.9=10
-  - notebook=5.4.1=py36_0
+  - notebook=5.6.0=py36_0
   - openssl=1.0.2o=0
-  - pandoc=2.2=0
-  - pandocfilters=1.4.2=py36_0
-  - parso=0.2.0=py_0
-  - pexpect=4.5.0=py36_0
+  - pandoc=2.2.2=0
+  - pandocfilters=1.4.2=py_1
+  - parso=0.3.0=py_0
+  - pexpect=4.6.0=py36_0
   - pickleshare=0.7.4=py36_0
   - pip=9.0.3=py36_0
+  - prometheus_client=0.2.0=py36_0
   - prompt_toolkit=1.0.15=py36_0
-  - ptyprocess=0.5.2=py36_0
-  - pygments=2.2.0=py36_0
+  - ptyprocess=0.6.0=py36_0
+  - pygments=2.2.0=py_1
   - python=3.6.5=1
-  - python-dateutil=2.7.2=py_0
-  - pyzmq=17.0.0=py36_4
+  - python-dateutil=2.7.3=py_0
+  - pyzmq=17.1.0=py36hae99301_0
   - readline=7.0=0
   - send2trash=1.5.0=py_0
-  - setuptools=39.1.0=py36_0
-  - simplegeneric=0.8.1=py36_0
+  - setuptools=40.0.0=py36_0
+  - simplegeneric=0.8.1=py_1
   - six=1.11.0=py36_1
   - sqlite=3.20.1=2
   - terminado=0.8.1=py36_0
@@ -56,14 +62,18 @@ dependencies:
   - tk=8.6.7=0
   - tornado=4.5.3=py36_0
   - traitlets=4.3.2=py36_0
-  - wcwidth=0.1.7=py36_0
+  - wcwidth=0.1.7=py_1
   - webencodings=0.5=py36_0
-  - wheel=0.31.0=py36_0
+  - wheel=0.31.1=py36_0
   - widgetsnbextension=3.2.1=py36_0
   - xz=5.2.3=0
-  - zeromq=4.2.5=1
-  - zlib=1.2.11=0
+  - zeromq=4.2.5=hfc679d8_3
+  - zlib=1.2.11=h470a237_3
+  - zope.interface=4.5.0=py36h470a237_0
+  - libgcc-ng=7.2.0=hdf63c60_3
+  - libstdcxx-ng=7.2.0=hdf63c60_3
+  - twisted=17.5.0=py36_0
   - pip:
-    - nteract-on-jupyter==1.7.0
+    - nteract-on-jupyter==1.8.1
 prefix: /opt/conda/envs/r2d