diff --git a/Media/arr_sync.sh b/Media/arr_sync.sh
index d60962e..2726da7 100755
--- a/Media/arr_sync.sh
+++ b/Media/arr_sync.sh
@@ -162,6 +162,8 @@ if [[ "$EUID" -ne 0 ]]; then
     exit 1
 fi
 
+acquire_lock
+
 for _tool in curl jq; do
     if ! command -v "$_tool" >/dev/null 2>&1; then
         error "$_tool not found — required for arr API calls"
diff --git a/Tools/bulk_permissions_repair.sh b/Tools/bulk_permissions_repair.sh
index bc29783..a7a97bd 100644
--- a/Tools/bulk_permissions_repair.sh
+++ b/Tools/bulk_permissions_repair.sh
@@ -96,6 +96,8 @@ if [[ "$EUID" -ne 0 ]]; then
     exit 1
 fi
 
+acquire_lock
+
 validate_unraid_cmd \
     "/usr/local/emhttp/plugins/dynamix/scripts/notify" \
     "" "" \
diff --git a/Tools/container_data_export.sh b/Tools/container_data_export.sh
index eac59c8..f352ac1 100644
--- a/Tools/container_data_export.sh
+++ b/Tools/container_data_export.sh
@@ -86,6 +86,8 @@ if [[ "$EUID" -ne 0 ]]; then
     exit 1
 fi
 
+acquire_lock
+
 validate_unraid_cmd \
     "/usr/local/emhttp/plugins/dynamix/scripts/notify" \
     "" "" \