diff --git a/acceptancetests/assess_persistent_storage.py b/acceptancetests/assess_persistent_storage.py
index <HASH>..<HASH> 100755
--- a/acceptancetests/assess_persistent_storage.py
+++ b/acceptancetests/assess_persistent_storage.py
@@ -335,7 +335,7 @@ def assess_charm_removal_single_block_and_filesystem_storage(client):
     # storage status change after remove-application takes some time.
     # from experiments even 30 seconds is not enough.
     wait_for_storage_status_update(
-        client, storage_id=single_fs_id, interval=15, timeout=90)
+        client, storage_id=single_fs_id, interval=15, timeout=180)
     storage_list = get_storage_list(client)[0]
     assert_storage_count(storage_list=storage_list, expected=1)
     if single_fs_id in storage_list:
Increase the wait time for the storage to be detached in CI test

I haven't been able to directly reproduce the failure locally, but if
I take the wait time right down I can get the test to fail in the same
way. Doubling the wait time should get it to pass more reliably.