diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bb6d53b..c8d9d04 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [12.x, 14.x, 16.x, 18.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
diff --git a/.npmignore b/.npmignore
index 38f5c6a..b784779 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,2 +1,3 @@
 .github
-test
\ No newline at end of file
+test
+coverage
\ No newline at end of file