diff --git a/tests/components/watttime/snapshots/test_diagnostics.ambr b/tests/components/watttime/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..e1cf4a8a42f
--- /dev/null
+++ b/tests/components/watttime/snapshots/test_diagnostics.ambr
@@ -0,0 +1,32 @@
+# serializer version: 1
+# name: test_entry_diagnostics
+  dict({
+    'data': dict({
+      'ba': 'CAISO_NORTH',
+      'freq': '300',
+      'moer': '850.743982',
+      'percent': '53',
+      'point_time': '2019-01-29T14:55:00.00Z',
+    }),
+    'entry': dict({
+      'data': dict({
+        'balancing_authority': '**REDACTED**',
+        'balancing_authority_abbreviation': '**REDACTED**',
+        'latitude': '**REDACTED**',
+        'longitude': '**REDACTED**',
+        'password': '**REDACTED**',
+        'username': '**REDACTED**',
+      }),
+      'disabled_by': None,
+      'domain': 'watttime',
+      'options': dict({
+      }),
+      'pref_disable_new_entities': False,
+      'pref_disable_polling': False,
+      'source': 'user',
+      'title': '**REDACTED**',
+      'unique_id': '**REDACTED**',
+      'version': 1,
+    }),
+  })
+# ---
diff --git a/tests/components/watttime/test_diagnostics.py b/tests/components/watttime/test_diagnostics.py
index 8f40e8dbcd2..1f45ba870fc 100644
--- a/tests/components/watttime/test_diagnostics.py
+++ b/tests/components/watttime/test_diagnostics.py
@@ -1,5 +1,7 @@
 """Test WattTime diagnostics."""
-from homeassistant.components.diagnostics import REDACTED
+from syrupy import SnapshotAssertion
+from syrupy.filters import props
+
 from homeassistant.core import HomeAssistant
 
 from tests.components.diagnostics import get_diagnostics_for_config_entry
@@ -11,34 +13,9 @@ async def test_entry_diagnostics(
     config_entry,
     hass_client: ClientSessionGenerator,
     setup_watttime,
+    snapshot: SnapshotAssertion,
 ) -> None:
     """Test config entry diagnostics."""
-    assert await get_diagnostics_for_config_entry(hass, hass_client, config_entry) == {
-        "entry": {
-            "entry_id": config_entry.entry_id,
-            "version": 1,
-            "domain": "watttime",
-            "title": REDACTED,
-            "data": {
-                "username": REDACTED,
-                "password": REDACTED,
-                "latitude": REDACTED,
-                "longitude": REDACTED,
-                "balancing_authority": REDACTED,
-                "balancing_authority_abbreviation": REDACTED,
-            },
-            "options": {},
-            "pref_disable_new_entities": False,
-            "pref_disable_polling": False,
-            "source": "user",
-            "unique_id": REDACTED,
-            "disabled_by": None,
-        },
-        "data": {
-            "freq": "300",
-            "ba": "CAISO_NORTH",
-            "percent": "53",
-            "moer": "850.743982",
-            "point_time": "2019-01-29T14:55:00.00Z",
-        },
-    }
+    assert await get_diagnostics_for_config_entry(
+        hass, hass_client, config_entry
+    ) == snapshot(exclude=props("entry_id"))