diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
index 1d50e72846..71689207e3 100644
--- a/boot/uboot/uboot.mk
+++ b/boot/uboot/uboot.mk
@@ -33,7 +33,7 @@ UBOOT_SITE = $(call qstrip,$(BR2_TARGET_UBOOT_CUSTOM_REPO_URL))
 UBOOT_SITE_METHOD = svn
 else
 # Handle stable official U-Boot versions
-UBOOT_SITE = ftp://ftp.denx.de/pub/u-boot
+UBOOT_SITE = https://ftp.denx.de/pub/u-boot
 UBOOT_SOURCE = u-boot-$(UBOOT_VERSION).tar.bz2
 endif