diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index cf152a13a9..1db55f63d1 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -55,22 +55,22 @@ CMAKE_VERSION=3.9.0-rc3
 # These are sanitized by the jenkins toolchain test builder, so if
 # a completely new URL is added here, it probably needs to be added
 # to the jenkins build as well, or the builder won't download it.
-GMP_ARCHIVE="http://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.xz"
-MPFR_ARCHIVE="http://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.xz"
-MPC_ARCHIVE="http://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
+GMP_ARCHIVE="https://ftpmirror.gnu.org/gmp/gmp-${GMP_VERSION}.tar.xz"
+MPFR_ARCHIVE="https://ftpmirror.gnu.org/mpfr/mpfr-${MPFR_VERSION}.tar.xz"
+MPC_ARCHIVE="https://ftpmirror.gnu.org/mpc/mpc-${MPC_VERSION}.tar.gz"
 LIBELF_ARCHIVE="http://www.mr511.de/software/libelf-${LIBELF_VERSION}.tar.gz"
-GCC_ARCHIVE="http://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
-BINUTILS_ARCHIVE="http://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.bz2"
-GDB_ARCHIVE="http://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
+GCC_ARCHIVE="https://ftpmirror.gnu.org/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2"
+BINUTILS_ARCHIVE="https://ftpmirror.gnu.org/binutils/binutils-${BINUTILS_VERSION}.tar.bz2"
+GDB_ARCHIVE="https://ftpmirror.gnu.org/gdb/gdb-${GDB_VERSION}.tar.xz"
 IASL_ARCHIVE="https://acpica.org/sites/acpica/files/acpica-unix2-${IASL_VERSION}.tar.gz"
-PYTHON_ARCHIVE="http://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz"
-EXPAT_ARCHIVE="http://downloads.sourceforge.net/sourceforge/expat/expat-${EXPAT_VERSION}.tar.bz2"
+PYTHON_ARCHIVE="https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz"
+EXPAT_ARCHIVE="https://downloads.sourceforge.net/sourceforge/expat/expat-${EXPAT_VERSION}.tar.bz2"
 # CLANG toolchain archive locations
-LLVM_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/llvm-${CLANG_VERSION}.src.tar.xz"
-CFE_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/cfe-${CLANG_VERSION}.src.tar.xz"
-CRT_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/compiler-rt-${CLANG_VERSION}.src.tar.xz"
-CTE_ARCHIVE="http://llvm.org/releases/${CLANG_VERSION}/clang-tools-extra-${CLANG_VERSION}.src.tar.xz"
-MAKE_ARCHIVE="http://ftpmirror.gnu.org/make/make-${MAKE_VERSION}.tar.bz2"
+LLVM_ARCHIVE="https://releases.llvm.org/${CLANG_VERSION}/llvm-${CLANG_VERSION}.src.tar.xz"
+CFE_ARCHIVE="https://releases.llvm.org/${CLANG_VERSION}/cfe-${CLANG_VERSION}.src.tar.xz"
+CRT_ARCHIVE="https://releases.llvm.org/${CLANG_VERSION}/compiler-rt-${CLANG_VERSION}.src.tar.xz"
+CTE_ARCHIVE="https://releases.llvm.org/${CLANG_VERSION}/clang-tools-extra-${CLANG_VERSION}.src.tar.xz"
+MAKE_ARCHIVE="https://ftpmirror.gnu.org/make/make-${MAKE_VERSION}.tar.bz2"
 CMAKE_ARCHIVE="https://cmake.org/files/v3.9/cmake-${CMAKE_VERSION}.tar.gz"
 
 ALL_ARCHIVES="$GMP_ARCHIVE $MPFR_ARCHIVE $MPC_ARCHIVE $LIBELF_ARCHIVE \