diff --git a/tox.ini b/tox.ini
index c7d6b24..fca2a85 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,7 +35,7 @@ passenv=
   PGPASSWORD
 usedevelop = true
 deps =
-  http://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
+  https://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
   # dependency constraints for authentic
   py2: django-appconf<1.0.4
   py2: django-filter<2
@@ -66,7 +66,7 @@ commands =
 usedevelop = true
 basepython = python2.7
 deps =
-    http://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
+    https://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
     Django<2.3
     pylint<1.8
     pylint-django<0.8.1