diff --git a/Makefile b/Makefile
index ac0a9218e88..9308883b850 100644
--- a/Makefile
+++ b/Makefile
@@ -546,7 +546,7 @@ TARGET_ARCHES_${target}= ${MACHINE_ARCH_LIST_${target}}
 .endfor
 
 .if defined(USE_GCC_TOOLCHAINS)
-_DEFAULT_GCC_VERSION=	gcc14
+_DEFAULT_GCC_VERSION=	gcc15
 _GCC_VERSION=		${"${USE_GCC_TOOLCHAINS:Mgcc*}" != "":?${USE_GCC_TOOLCHAINS}:${_DEFAULT_GCC_VERSION}}
 TOOLCHAINS_amd64=	amd64-${_GCC_VERSION}
 TOOLCHAINS_arm=		armv7-${_GCC_VERSION}