diff --git a/tox.ini b/tox.ini
index b65b115..69cba70 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,7 +32,7 @@ passenv=
   PGPASSWORD
 usedevelop = true
 deps =
-  !local: http://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
+  !local: https://git.entrouvert.org/authentic.git/snapshot/authentic-master.tar.gz
   local: ../authentic2
   # dependency constraints for authentic
   py3: file-magic
@@ -62,7 +62,7 @@ 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