diff --git a/requirements.txt b/requirements.txt
index 66907e7b2e968361eb2f74831f0081f2ae191f88..3543462cfb2925023ee66a64b9a2619a004bf61e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ matplotlib>=1.5.1
 nibabel>=2.0.2
 sphinx>=1.4.1
 sphinx-rtd-theme>=0.1.9
-git+https://github.com/pauldmccarthy/indexed_gzip.git#egg=indexed_gzip
+indexed_gzip>=0.3.1
 git+ssh://git@git.fmrib.ox.ac.uk/paulmc/props.git#egg=props