diff --git a/src/lib/synergy/ToolApp.cpp b/src/lib/synergy/ToolApp.cpp
index e623dd37..cf896089 100644
--- a/src/lib/synergy/ToolApp.cpp
+++ b/src/lib/synergy/ToolApp.cpp
@@ -30,7 +30,7 @@
 #include "platform/MSWindowsSession.h"
 #endif
 
-#define JSON_URL "http://synergy-project.org/premium/json/"
+#define JSON_URL "https://synergy-project.org/premium/json/"
 
 enum {
 	kErrorOk,