diff --git a/.gitmodules b/.gitmodules
index c009a81..f1273f5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "td"]
 	path = td
-	url = http://github.com/tdlib/td.git
+	url = https://github.com/tdlib/td.git