diff --git a/.travis.yml b/.travis.yml
index 01a364e..5f9aac5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,9 +18,7 @@ matrix:
 
 before_script:
   - rustup component add rustfmt
-  - (test -x $HOME/.cargo/bin/cargo-install-update || ./ci/install-cargo-update.sh)
   - (test -x $HOME/.cargo/bin/mdbook || ./ci/install-mdbook.sh)
-  - cargo install-update -a
 
 script:
   - if ![[ -n "$BUILD_BOOK" ]]; then cargo check --all --benches --bins --examples --tests && cargo test --all; fi
diff --git a/ci/install-cargo-update.sh b/ci/install-cargo-update.sh
deleted file mode 100755
index 12382e6..0000000
--- a/ci/install-cargo-update.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-set -euxo pipefail
-
-# Based on the Rust-Embedded WG's book CI
-# https://github.com/rust-embedded/book/blob/master/ci/install.sh
-
-main() {
-    # Note - this will accept any tagged release
-    local tag=$(git ls-remote --tags --refs --exit-code \
-                    https://github.com/nabijaczleweli/cargo-update \
-                        | cut -d/ -f3 \
-                        | grep -E '^v[0-9\.]+$' \
-                        | sort --version-sort \
-                        | tail -n1)
-
-    $(dirname $(realpath $0))/install-tbz2.sh --git nabijaczleweli/cargo-update --tag $tag --crate cargo-install-update
-}
-
-main
diff --git a/ci/install-tbz2.sh b/ci/install-tbz2.sh
deleted file mode 100755
index 94a6529..0000000
--- a/ci/install-tbz2.sh
+++ /dev/null
@@ -1,158 +0,0 @@
-#!/bin/sh
-
-# NOTE: This is based on https://japaric.github.io/trust/install.sh,
-# but has been modified to not expect a target tag, and to instead
-# expect bzip2 tar files (.tbz2) instead of gzip tar files (.tar.gz)
-
-set -e
-
-help() {
-    cat <<'EOF'
-Install a binary release of a Rust crate hosted on GitHub
-
-Usage:
-    install.sh [options]
-
-Options:
-    -h, --help      Display this message
-    --git SLUG      Get the crate from "https://github/$SLUG"
-    -f, --force     Force overwriting an existing binary
-    --crate NAME    Name of the crate to install (default <repository name>)
-    --tag TAG       Tag (version) of the crate to install (default <latest release>)
-    --target TARGET Install the release compiled for $TARGET (default <`rustc` host>)
-    --to LOCATION   Where to install the binary (default ~/.cargo/bin)
-EOF
-}
-
-say() {
-    echo "install.sh: $1"
-}
-
-say_err() {
-    say "$1" >&2
-}
-
-err() {
-    if [ ! -z $td ]; then
-        rm -rf $td
-    fi
-
-    say_err "ERROR $1"
-    exit 1
-}
-
-need() {
-    if ! command -v $1 > /dev/null 2>&1; then
-        err "need $1 (command not found)"
-    fi
-}
-
-force=false
-while test $# -gt 0; do
-    case $1 in
-        --crate)
-            crate=$2
-            shift
-            ;;
-        --force | -f)
-            force=true
-            ;;
-        --git)
-            git=$2
-            shift
-            ;;
-        --help | -h)
-            help
-            exit 0
-            ;;
-        --tag)
-            tag=$2
-            shift
-            ;;
-        --target)
-            target=$2
-            shift
-            ;;
-        --to)
-            dest=$2
-            shift
-            ;;
-        *)
-            ;;
-    esac
-    shift
-done
-
-# Dependencies
-need basename
-need curl
-need install
-need mkdir
-need mktemp
-need tar
-
-# Optional dependencies
-if [ -z $crate ] || [ -z $tag ] || [ -z $target ]; then
-    need cut
-fi
-
-if [ -z $tag ]; then
-    need rev
-fi
-
-if [ -z $target ]; then
-    need grep
-    need rustc
-fi
-
-if [ -z $git ]; then
-    err 'must specify a git repository using `--git`. Example: `install.sh --git japaric/cross`'
-fi
-
-url="https://github.com/$git"
-say_err "GitHub repository: $url"
-
-if [ -z $crate ]; then
-    crate=$(echo $git | cut -d'/' -f2)
-fi
-
-say_err "Crate: $crate"
-
-url="$url/releases"
-
-if [ -z $tag ]; then
-    tag=$(curl -s "$url/latest" | cut -d'"' -f2 | rev | cut -d'/' -f1 | rev)
-    say_err "Tag: latest ($tag)"
-else
-    say_err "Tag: $tag"
-fi
-
-if [ -z $target ]; then
-    target=$(rustc -Vv | grep host | cut -d' ' -f2)
-fi
-
-say_err "Target: $target"
-
-if [ -z $dest ]; then
-    dest="$HOME/.cargo/bin"
-fi
-
-say_err "Installing to: $dest"
-
-url="$url/download/$tag/$crate-$tag.tbz2"
-
-td=$(mktemp -d || mktemp -d -t tmp)
-curl -sL $url | tar -C $td -xj
-
-for f in $(ls $td); do
-    test -x $td/$f || continue
-
-    if [ -e "$dest/$f" ] && [ $force = false ]; then
-        err "$f already exists in $dest"
-    else
-        mkdir -p $dest
-        install -m 755 $td/$f $dest
-    fi
-done
-
-rm -rf $td