diff --git a/lua/frecency/tests/migrator_spec.lua b/lua/frecency/tests/migrator_spec.lua
index 000393a5..c53c7825 100644
--- a/lua/frecency/tests/migrator_spec.lua
+++ b/lua/frecency/tests/migrator_spec.lua
@@ -30,9 +30,9 @@ local function v1_table(source)
         local result = vim.fn.strptime("%FT%T%z", timestamp .. timezone)
         return result ~= 0 and result or nil
       end
-      local epoch = t "+00:00" or t "+0000"
+      local epoch = t "+00:00" or t "+0000" or t "Z" or t "z"
       table.insert(timestamps, epoch)
-      log.debug { colon = t "+00:00", none = t "+0000" }
+      log.debug { colon = t "+00:00", none = t "+0000", z = t "z", zz = t "Z" }
     end
     records[path] = { count = record.count, timestamps = timestamps }
   end