diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc14ad8..ef98ba1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [[PR #210](https://github.com/nf-core/proteinfold/pull/210)] - Moving post-processing logic to a subworkflow, change wave images pointing to oras to point to https and refactor module to match nf-core folder structure.
 - [[#214](https://github.com/nf-core/proteinfold/issues/214)] - Fix colabfold image to run in cpus after [#188](https://github.com/nf-core/proteinfold/issues/188) fix.
 - [[#235](https://github.com/nf-core/proteinfold/issues/235)] - Update samplesheet to new version (switch from `sequence` column to `id`).
+- [[#240](https://github.com/nf-core/proteinfold/issues/240)] - Separate download and input of pdb `mmcif` files and `obsolete` database.
+
+### Parameters
+
+| Old parameter         | New parameter                            |
+| --------------------- | ---------------------------------------- |
+|                       | `--pdb_obsolete_path`                    |
+
+> **NB:** Parameter has been **updated** if both old and new parameter information is present.
+> **NB:** Parameter has been **added** if just the new parameter information is present.
+> **NB:** Parameter has been **removed** if parameter information is
 
 ## [[1.1.1](https://github.com/nf-core/proteinfold/releases/tag/1.1.1)] - 2025-07-30
 
diff --git a/nextflow.config b/nextflow.config
index d3322f3..83c59a7 100644
--- a/nextflow.config
+++ b/nextflow.config
@@ -43,6 +43,7 @@ params {
     mgnify_path                 = null
     pdb70_path                  = null
     pdb_mmcif_path              = null
+    pdb_obsolete_path           = null
     uniref30_alphafold2_path    = null
     uniref90_path               = null
     pdb_seqres_path             = null