diff --git a/requirements.txt b/requirements.txt
index 9dbf90ae2..3769437fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 # These are Python requirements needed to run ceph-ansible master
 ansible>=2.9,<2.10,!=2.9.10
 netaddr
+six
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 5af56f780..5820c69e0 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,5 +1,4 @@
 # These are Python requirements needed to run the functional tests
-six==1.10.0
 testinfra>=3,<4
 pytest-xdist==1.28.0
 pytest>=4.6,<5.0