diff --git a/.readthedocs-conda.yml b/.readthedocs-conda.yml
index 15c344a88..03165866f 100644
--- a/.readthedocs-conda.yml
+++ b/.readthedocs-conda.yml
@@ -6,8 +6,10 @@ dependencies:
    - termcolor
    - python-magic==0.4.12
    - flask
+   - typeguard
    - pygments
    - ansiconv
    - numpy
+   - pillow
    - https://storage.googleapis.com/tensorflow/linux/cpu/tensorflow-0.11.0-cp35-cp35m-linux_x86_64.whl
    - sphinx==1.5.1