diff --git a/CHANGELOG.md b/CHANGELOG.md
index d07c664..9194d5e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,4 @@
+7/13/18: Update dependencies in README (issue #78)
 7/11/18: Update code to python3
 3/17/16: Update documentation to Sphinx standard and add documentation build files (issue #17)
 2/17/16: Changes to correlation function plots & documentation (issue #77)
diff --git a/README.md b/README.md
index 9dda06d..b9e9988 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@ We also recommend:
  - [TreeCorr](http://github.com/rmjarvis/TreeCorr), Mike Jarvis's 2-point correlation function code.  All of our correlation function tests involve calls to this package.
  - PyFITS/Astropy to handle FITS tables and images.  Stile can run on ASCII tables, but is much slower.
  - matplotlib to generate plots.
+ - scipy to calculate some point statistics
 
 Note that these dependencies will be automatically installed by pip. More dependencies may be added in the future.