diff --git a/requirements.txt b/requirements.txt
index 67c5821a..df637a7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,8 @@ setuptools>=17.1
 # setuptools needs to be upgraded below to ensure we have
 # a new enough setuptools version to support using >=
 # for the python_version marker
-iniparse>=0.5
+iniparse>=0.4;python_version=='2.7' # MIT
+iniparse>=0.5;python_version>='3.6' # MIT
 crudini>=0.9.3
 paramiko>=2.7.0
 sshtunnel<=0.1.3;python_version=='2.7' # MIT