diff --git a/content/install.txt b/content/install.txt
index 8300ec2ac8a92156e73154c9e83e8adc2644ea42..de3a52e0b70908120faa388d2a76ae1bff91e69e 100644
--- a/content/install.txt
+++ b/content/install.txt
@@ -228,17 +228,17 @@ you are safe.
 
 4. Install a few prerequisites ::
 
-       brew install gfortran python
+       brew install gcc python
 
 5. Add additional repositories ::
 
        brew tap homebrew/science
-       brew tap samueljohn/python
+       brew tap homebrew/python
        brew tap michaelwimmer/kwant
 
 6. Install Kwant and its prerequisites ::
 
-       pip install nose
+       pip install nose six
        brew install numpy scipy matplotlib
        brew install kwant