diff --git a/homeassistant/components/blink/diagnostics.py b/homeassistant/components/blink/diagnostics.py
index f69c1721bf1..664d1421ac2 100644
--- a/homeassistant/components/blink/diagnostics.py
+++ b/homeassistant/components/blink/diagnostics.py
@@ -11,7 +11,7 @@ from homeassistant.core import HomeAssistant
 
 from .const import DOMAIN
 
-TO_REDACT = {"serial", "macaddress", "username", "password", "token"}
+TO_REDACT = {"serial", "macaddress", "username", "password", "token", "unique_id"}
 
 
 async def async_get_config_entry_diagnostics(
diff --git a/tests/components/blink/conftest.py b/tests/components/blink/conftest.py
index 946840c23b9..d7deaf39bd9 100644
--- a/tests/components/blink/conftest.py
+++ b/tests/components/blink/conftest.py
@@ -87,6 +87,7 @@ def mock_config_fixture():
             "device_id": "Home Assistant",
             "uid": "BlinkCamera_e1233333e2-0909-09cd-777a-123456789012",
             "token": "A_token",
+            "unique_id": "an_email@email.com",
             "host": "u034.immedia-semi.com",
             "region_id": "u034",
             "client_id": 123456,
diff --git a/tests/components/blink/snapshots/test_diagnostics.ambr b/tests/components/blink/snapshots/test_diagnostics.ambr
index 7fb13c97548..b572aae0a00 100644
--- a/tests/components/blink/snapshots/test_diagnostics.ambr
+++ b/tests/components/blink/snapshots/test_diagnostics.ambr
@@ -34,6 +34,7 @@
         'region_id': 'u034',
         'token': '**REDACTED**',
         'uid': 'BlinkCamera_e1233333e2-0909-09cd-777a-123456789012',
+        'unique_id': '**REDACTED**',
         'username': '**REDACTED**',
       }),
       'disabled_by': None,