diff --git a/MANIFEST.in b/MANIFEST.in
index e163bde9f..ed4b5e5b1 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -43,5 +43,6 @@ exclude tests/unit/scripts/test_run_vulture.py
 exclude tests/unit/scripts/test_check_coverage.py
 prune doc/extapi
 prune misc/nsis
+prune **/.mypy_cache
 
 global-exclude __pycache__ *.pyc *.pyo