diff --git a/environment.yml b/environment.yml
index 30ff0d70..d6ab0f1a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -21,6 +21,7 @@ dependencies:
 - pip:
   # not available on conda, so use pip
   - notedown>=1.5
+  - jupytext>=1.2.0rc3
   - jupytercontrib>=0.0.5
   - bs4
   # need improvements from master branch
diff --git a/requirements.txt b/requirements.txt
index 634d780f..df4de83b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 jupyter
 ipython
 notedown>=1.4
+jupytext>=1.2.0rc3
 numpy>=1.11
 scipy>=0.17
 matplotlib>=2.0.0