diff --git a/vault-github/run.sh b/vault-github/run.sh
index bf2847b..6998b8d 100644
--- a/vault-github/run.sh
+++ b/vault-github/run.sh
@@ -86,13 +86,13 @@ install() {
 
 TMP=$(mktemp -d)
 if ! (
-  cd $TMP
+  cd "$TMP"
   install
 ); then
   echo "Failed to install Vault CLI."
   exit 1
 fi
-rm -rf $TMP
+rm -rf "$TMP"
 
 # Authenticate with Vault
 printf "🔑 Authenticating with Vault ...\n\n"
diff --git a/vault-token/run.sh b/vault-token/run.sh
index 357a24a..a4edcd1 100644
--- a/vault-token/run.sh
+++ b/vault-token/run.sh
@@ -84,10 +84,10 @@ install() {
 
 TMP=$(mktemp -d)
 if ! (
-  cd $TMP
+  cd "$TMP"
   install
 ); then
   echo "Failed to install Vault CLI."
   exit 1
 fi
-rm -rf $TMP
+rm -rf "$TMP"