diff --git a/artifacts/api-server/tests/admin-app-opens-pagination.test.mjs b/artifacts/api-server/tests/admin-app-opens-pagination.test.mjs
index b6e35be6..ca2abccb 100644
--- a/artifacts/api-server/tests/admin-app-opens-pagination.test.mjs
+++ b/artifacts/api-server/tests/admin-app-opens-pagination.test.mjs
@@ -61,6 +61,16 @@ before(async () => {
   assert.ok(appRes.rows[0], "no active app found to test against");
   appId = appRes.rows[0].id;
 
+  // Walking pagination assumes totalCount is bounded. Other tests can leave
+  // app_opens rows behind (or seed/admin runs may have populated some) for
+  // the same app within the 7d window. Push any pre-existing rows for this
+  // app outside the window so totalCount reflects only the rows we insert.
+  await pool.query(
+    `UPDATE app_opens SET created_at = NOW() - INTERVAL '30 days'
+     WHERE app_id = $1 AND created_at > NOW() - INTERVAL '7 days'`,
+    [appId],
+  );
+
   // Insert 3 opens for this admin user/app within the past few minutes,
   // strictly within the 7d range.
   const now = Date.now();