diff --git a/appveyor.yml b/appveyor.yml
index 74190164..609565c0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,7 +16,7 @@ install:
 
   - cmd: C:\Python36\python --version
 
-  - cmd: git clone git@github.com:eclipse/paho.mqtt.testing.git
+  - cmd: git clone https://github.com/eclipse/paho.mqtt.testing.git
 
   - cmd: cd paho.mqtt.testing\interoperability