diff --git a/.npmignore b/.npmignore
index 081a48c64..d4cb9c574 100644
--- a/.npmignore
+++ b/.npmignore
@@ -2,6 +2,8 @@ test
 examples
 doc
 benchmark
+coverage
+.nyc_output
 .travis.yml
 CHANGELOG.md
-UPGRADING.md
\ No newline at end of file
+UPGRADING.md