1 files changed, 1 insertions, 0 deletions

diff --git a/requirements.txt b/requirements.txt
index 8ddddf4..4b53513 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 numpy
 scipy
+six
 mpmath
 emcee
 pymultinest