diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ec68794f8..6c2c755e55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@
 - Warn if container access is denied ([#2270](https://github.com/nf-core/tools/pull/2270))
 - Error if module container specification has quay.io as prefix when it shouldn't have ([#2278])(https://github.com/nf-core/tools/pull/2278/files)
 - Detect if container is 'simple name' and try to contact quay.io server by default ([#2281](https://github.com/nf-core/tools/pull/2281))
+- Warn about null/None/empty default values in `nextflow_schema.json` ([#3328](https://github.com/nf-core/tools/pull/2328))
 
 ### Modules