diff --git a/anaconda-env.yml b/anaconda-env.yml
index 05efc2e..5aa07fe 100644
--- a/anaconda-env.yml
+++ b/anaconda-env.yml
@@ -73,6 +73,8 @@ dependencies:
   - pypulse>=0.1.1
   - gitpython
   - bilby
+  - gfortran
+  - gxx_linux-64
   - pip:
     - git+https://github.com/PolyChord/PolyChordLite@master
     - git+https://github.com/pennucci/PulsePortraiture.git@py3