diff --git a/packages/jest-circus/.npmignore b/packages/jest-circus/.npmignore
new file mode 100644
index 000000000000..85e48fe7b0a4
--- /dev/null
+++ b/packages/jest-circus/.npmignore
@@ -0,0 +1,3 @@
+**/__mocks__/**
+**/__tests__/**
+src