diff --git a/docs/README.md b/docs/README.md
index 4fb9b8855..13c5b37d4 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -9,11 +9,12 @@ The documentation requires a few dependencies beyond those necessary for the qua
 * sphinx
 * numpydoc
 * sphinx_rtd_theme
+* mock
 
 You can install these by executing
 
 ```
-pip install sphinx numpydoc sphinx_rtd_theme
+conda install sphinx numpydoc sphinx_rtd_theme mock
 ```
 
 ## Building the docs