diff --git a/scripts/check b/scripts/check
index 820e28c..3fcb110 100755
--- a/scripts/check
+++ b/scripts/check
@@ -35,6 +35,6 @@ eprintln "Building documentation"
 cargo doc --no-deps --lib
 
 eprintln "Installing 'mdbook-admonish' binary"
-cargo install --path .
+cargo install --path . --force
 eprintln "Running mdbook integration test"
 ./integration/scripts/check
diff --git a/scripts/install b/scripts/install
index 76c3cd0..2ffe4be 100755
--- a/scripts/install
+++ b/scripts/install
@@ -5,5 +5,10 @@ set -exuo pipefail
 cd "$(dirname "$0")"/..
 
 rustup component add rustfmt clippy
-cargo install cargo-audit
-cargo install mdbook
+
+if ! cargo audit --version; then
+  cargo install cargo-audit --force
+fi
+if ! mdbook --version; then
+  cargo install mdbook --force
+fi