diff --git a/.github/workflows/npm.yaml b/.github/workflows/npm.yaml
index 710a577..78f1e7b 100644
--- a/.github/workflows/npm.yaml
+++ b/.github/workflows/npm.yaml
@@ -1,9 +1,9 @@
 name: CI validation
 on:
   push:
-    branches: [ $default-branch ]
+    branches: [ 'master' ]
   pull_request:
-    branches: [ $default-branch ]
+    branches: [ 'master' ]
 
 jobs:
   build:
diff --git a/test/crud-test.js b/test/crud-test.ts
similarity index 100%
rename from test/crud-test.js
rename to test/crud-test.ts
diff --git a/test/helpers-test.js b/test/helpers-test.ts
similarity index 100%
rename from test/helpers-test.js
rename to test/helpers-test.ts