diff --git a/.fixtures.yml b/.fixtures.yml
index 980cd9b..57d7c7a 100644
--- a/.fixtures.yml
+++ b/.fixtures.yml
@@ -1,5 +1,5 @@
 fixtures:
   symlinks:
     "sudo": "#{source_dir}"
   repositories:
-    stdlib: "http://github.com/puppetlabs/puppetlabs-stdlib.git"
+    stdlib: "https://github.com/puppetlabs/puppetlabs-stdlib.git"