diff --git a/variants/NICLA/conf/mbed_app.json b/variants/NICLA/conf/mbed_app.json
index 319560887..70a43c7e6 100644
--- a/variants/NICLA/conf/mbed_app.json
+++ b/variants/NICLA/conf/mbed_app.json
@@ -26,7 +26,7 @@
       "ble.ble-gap-host-max-advertising-start-commands": 1,
       "ble.ble-gap-host-privacy-resolved-cache-size": 1,
       "ble.ble-feature-gatt-client": false,
-      "ble.ble-feature-security": false,
+      "ble.ble-feature-security": true,
       "ble.ble-feature-secure-connections": false,
       "ble.ble-feature-signing": false,
       "ble.ble-feature-whitelist": false,