diff --git a/jrnl/plugins/calendar_heatmap_exporter.py b/jrnl/plugins/calendar_heatmap_exporter.py
index 46bf0ec5..78cbaf9a 100644
--- a/jrnl/plugins/calendar_heatmap_exporter.py
+++ b/jrnl/plugins/calendar_heatmap_exporter.py
@@ -16,7 +16,7 @@ from jrnl.plugins.text_exporter import TextExporter
 from jrnl.plugins.util import get_journal_frequency_nested
 
 if TYPE_CHECKING:
-    from jrnl.datatypes import NestedDict
+    from jrnl.plugins.util import NestedDict
     from jrnl.journals import Entry
     from jrnl.journals import Journal