diff --git a/src/ci/docker/armhf-gnu/Dockerfile b/src/ci/docker/armhf-gnu/Dockerfile
index 9493b3369870..5373612279bc 100644
--- a/src/ci/docker/armhf-gnu/Dockerfile
+++ b/src/ci/docker/armhf-gnu/Dockerfile
@@ -72,7 +72,7 @@ RUN arm-linux-gnueabihf-gcc addentropy.c -o rootfs/addentropy -static
 
 # TODO: What is this?!
 # Source of the file: https://github.com/vfdev-5/qemu-rpi2-vexpress/raw/master/vexpress-v2p-ca15-tc1.dtb
-RUN curl -O https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/vexpress-v2p-ca15-tc1.dtb
+RUN curl -O https://ci-mirrors.rust-lang.org/rustc/vexpress-v2p-ca15-tc1.dtb
 
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
diff --git a/src/ci/docker/dist-armv7-linux/crosstool-ng.sh b/src/ci/docker/dist-armv7-linux/crosstool-ng.sh
index ae737d9677d8..fb067a79a5c8 100644
--- a/src/ci/docker/dist-armv7-linux/crosstool-ng.sh
+++ b/src/ci/docker/dist-armv7-linux/crosstool-ng.sh
@@ -1,7 +1,7 @@
 set -ex
 
 # Mirrored from https://github.com/crosstool-ng/crosstool-ng/archive/crosstool-ng-1.24.0.tar.gz
-url="https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/crosstool-ng-1.24.0.tar.gz"
+url="https://ci-mirrors.rust-lang.org/rustc/crosstool-ng-1.24.0.tar.gz"
 curl -Lf $url | tar xzf -
 cd crosstool-ng-crosstool-ng-1.24.0
 ./bootstrap
diff --git a/src/ci/docker/dist-various-1/install-mips-musl.sh b/src/ci/docker/dist-various-1/install-mips-musl.sh
index 29cfb5d96083..9584258d2340 100755
--- a/src/ci/docker/dist-various-1/install-mips-musl.sh
+++ b/src/ci/docker/dist-various-1/install-mips-musl.sh
@@ -5,7 +5,7 @@ mkdir /usr/local/mips-linux-musl
 # originally from
 # https://downloads.openwrt.org/snapshots/trunk/ar71xx/generic/
 # OpenWrt-Toolchain-ar71xx-generic_gcc-5.3.0_musl-1.1.16.Linux-x86_64.tar.bz2
-URL="https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc"
+URL="https://ci-mirrors.rust-lang.org/rustc"
 FILE="OpenWrt-Toolchain-ar71xx-generic_gcc-5.3.0_musl-1.1.16.Linux-x86_64.tar.bz2"
 curl -L "$URL/$FILE" | tar xjf - -C /usr/local/mips-linux-musl --strip-components=2
 
diff --git a/src/ci/docker/dist-various-1/install-mipsel-musl.sh b/src/ci/docker/dist-various-1/install-mipsel-musl.sh
index de8c359d1675..50a8e554b167 100755
--- a/src/ci/docker/dist-various-1/install-mipsel-musl.sh
+++ b/src/ci/docker/dist-various-1/install-mipsel-musl.sh
@@ -5,7 +5,7 @@ mkdir /usr/local/mipsel-linux-musl
 # Note that this originally came from:
 # https://downloads.openwrt.org/snapshots/trunk/malta/generic/
 # OpenWrt-Toolchain-malta-le_gcc-5.3.0_musl-1.1.15.Linux-x86_64.tar.bz2
-URL="https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc"
+URL="https://ci-mirrors.rust-lang.org/rustc"
 FILE="OpenWrt-Toolchain-malta-le_gcc-5.3.0_musl-1.1.15.Linux-x86_64.tar.bz2"
 curl -L "$URL/$FILE" | tar xjf - -C /usr/local/mipsel-linux-musl --strip-components=2
 
diff --git a/src/ci/docker/dist-various-2/build-wasi-toolchain.sh b/src/ci/docker/dist-various-2/build-wasi-toolchain.sh
index c63ea6facca6..17aa78945cf2 100755
--- a/src/ci/docker/dist-various-2/build-wasi-toolchain.sh
+++ b/src/ci/docker/dist-various-2/build-wasi-toolchain.sh
@@ -5,7 +5,7 @@
 set -ex
 
 # Originally from https://releases.llvm.org/9.0.0/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz
-curl https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/clang%2Bllvm-9.0.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz | \
+curl https://ci-mirrors.rust-lang.org/rustc/clang%2Bllvm-9.0.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz | \
   tar xJf -
 export PATH=`pwd`/clang+llvm-9.0.0-x86_64-linux-gnu-ubuntu-14.04/bin:$PATH
 
diff --git a/src/ci/docker/dist-x86_64-linux/build-curl.sh b/src/ci/docker/dist-x86_64-linux/build-curl.sh
index 8200bbe2fdce..a65e3de5cfc2 100755
--- a/src/ci/docker/dist-x86_64-linux/build-curl.sh
+++ b/src/ci/docker/dist-x86_64-linux/build-curl.sh
@@ -5,7 +5,7 @@ source shared.sh
 
 VERSION=7.66.0
 
-curl https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/curl-$VERSION.tar.xz \
+curl https://ci-mirrors.rust-lang.org/rustc/curl-$VERSION.tar.xz \
   | xz --decompress \
   | tar xf -
 
diff --git a/src/ci/docker/dist-x86_64-linux/build-openssl.sh b/src/ci/docker/dist-x86_64-linux/build-openssl.sh
index be8a6c93945e..0d9bdf7a0992 100755
--- a/src/ci/docker/dist-x86_64-linux/build-openssl.sh
+++ b/src/ci/docker/dist-x86_64-linux/build-openssl.sh
@@ -4,7 +4,7 @@ set -ex
 source shared.sh
 
 VERSION=1.0.2k
-URL=https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/openssl-$VERSION.tar.gz
+URL=https://ci-mirrors.rust-lang.org/rustc/openssl-$VERSION.tar.gz
 
 curl $URL | tar xzf -
 
diff --git a/src/ci/docker/dist-x86_64-netbsd/build-netbsd-toolchain.sh b/src/ci/docker/dist-x86_64-netbsd/build-netbsd-toolchain.sh
index 797f674b954f..f8697c698b9f 100755
--- a/src/ci/docker/dist-x86_64-netbsd/build-netbsd-toolchain.sh
+++ b/src/ci/docker/dist-x86_64-netbsd/build-netbsd-toolchain.sh
@@ -25,7 +25,7 @@ cd netbsd
 
 mkdir -p /x-tools/x86_64-unknown-netbsd/sysroot
 
-URL=https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc
+URL=https://ci-mirrors.rust-lang.org/rustc
 
 # Originally from ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-$BSD/source/sets/*.tgz
 curl $URL/2018-03-01-netbsd-src.tgz | tar xzf -
diff --git a/src/ci/docker/scripts/freebsd-toolchain.sh b/src/ci/docker/scripts/freebsd-toolchain.sh
index 70155e770a96..5670e10be23c 100755
--- a/src/ci/docker/scripts/freebsd-toolchain.sh
+++ b/src/ci/docker/scripts/freebsd-toolchain.sh
@@ -59,7 +59,7 @@ done
 
 # Originally downloaded from:
 # https://download.freebsd.org/ftp/releases/${freebsd_arch}/${freebsd_version}-RELEASE/base.txz
-URL=https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/2019-04-04-freebsd-${freebsd_arch}-${freebsd_version}-RELEASE-base.txz
+URL=https://ci-mirrors.rust-lang.org/rustc/2019-04-04-freebsd-${freebsd_arch}-${freebsd_version}-RELEASE-base.txz
 curl "$URL" | tar xJf - -C "$sysroot" --wildcards "${files_to_extract[@]}"
 
 # Fix up absolute symlinks from the system image.  This can be removed
diff --git a/src/ci/docker/scripts/sccache.sh b/src/ci/docker/scripts/sccache.sh
index efeb0ed0d72d..552afbfee7c1 100644
--- a/src/ci/docker/scripts/sccache.sh
+++ b/src/ci/docker/scripts/sccache.sh
@@ -1,6 +1,6 @@
 set -ex
 
 curl -fo /usr/local/bin/sccache \
-  https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc/2018-04-02-sccache-x86_64-unknown-linux-musl
+  https://ci-mirrors.rust-lang.org/rustc/2018-04-02-sccache-x86_64-unknown-linux-musl
 
 chmod +x /usr/local/bin/sccache
diff --git a/src/ci/shared.sh b/src/ci/shared.sh
index 718a5379ae55..862ded0d5dbf 100644
--- a/src/ci/shared.sh
+++ b/src/ci/shared.sh
@@ -4,7 +4,7 @@
 # `source shared.sh`, hence the invalid shebang and not being
 # marked as an executable file in git.
 
-export MIRRORS_BASE="https://rust-lang-ci-mirrors.s3-us-west-1.amazonaws.com/rustc"
+export MIRRORS_BASE="https://ci-mirrors.rust-lang.org/rustc"
 
 # See http://unix.stackexchange.com/questions/82598
 # Duplicated in docker/dist-various-2/shared.sh