diff --git a/.gitignore b/.gitignore
index 3054abce..b78e7d7d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@ __pycache__/
 
 # Mypy cache
 .mypy_cache*
+.dmypy.json
 
 # C extensions
 *.so