diff --git a/tap_linkedin_ads/tap.py b/tap_linkedin_ads/tap.py
index 52d4c65..ea8e946 100644
--- a/tap_linkedin_ads/tap.py
+++ b/tap_linkedin_ads/tap.py
@@ -34,6 +34,7 @@ class TapLinkedInAds(Tap):
                 th.Property(
                     "refresh_token",
                     th.StringType,
+                    secret=True,
                     description="LinkedIn Ads Refresh Token",
                 ),
                 th.Property(