diff --git a/lib/checks.sh b/lib/checks.sh
index 36f7f2206..65c6727c9 100644
--- a/lib/checks.sh
+++ b/lib/checks.sh
@@ -105,6 +105,7 @@ function checks::existing_python_dir_present() {
 
 function checks::existing_venv_dir_present() {
 	local build_dir="${1}"
+	local venv_name
 
 	for venv_name in ".venv" "venv"; do
 		if [[ -f "${build_dir}/${venv_name}/pyvenv.cfg" ]]; then
diff --git a/vendor/buildpack-stdlib_v8.sh b/vendor/buildpack-stdlib_v8.sh
index ad8558f06..8f82fc152 100755
--- a/vendor/buildpack-stdlib_v8.sh
+++ b/vendor/buildpack-stdlib_v8.sh
@@ -48,6 +48,7 @@ export_env() {
 	local blacklist
 	blacklist="$(_env_blacklist "${3:-}")"
 	if [[ -d "${env_dir}" ]]; then
+		local e
 		# Environment variable names won't contain characters affected by:
 		# shellcheck disable=SC2045
 		for e in $(ls "${env_dir}"); do