diff --git a/.gitmodules b/.gitmodules
index 009ae439..546e03fa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "gnulib"]
 	path = gnulib
-	url = git://git.savannah.gnu.org/gnulib.git
+	url = https://git.savannah.gnu.org/git/gnulib.git