diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05b33af..ab3c905 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 * [Deployment] Set draft version for development
 * [Spec] Replace `plu:procedureStartDate` (type `xsd:dateTime`) with `plu:procedurePeriod` (type `dct:PeriodOfTime`)
 * [Spec] Add new attribute `dct:title` to `plu:ProcessStep`
+* [API] Remove `source` query parameter from `POST`/`PUT`/`DELETE` endpoints for records
 
 ## 2024-02-28 - 0.1.4
 
diff --git a/drafts/0.0.1-draft-0.1/api-plu.yml b/drafts/0.0.1-draft-0.1/api-plu.yml
index eadb9f8..706dea8 100644
--- a/drafts/0.0.1-draft-0.1/api-plu.yml
+++ b/drafts/0.0.1-draft-0.1/api-plu.yml
@@ -241,7 +241,6 @@ paths:
       operationId: postRecord
       parameters:
         - $ref: '#/components/parameters/collectionId'
-        - $ref: '#/components/parameters/source'
       requestBody:
         required: true
         content:
@@ -301,7 +300,6 @@ paths:
       parameters:
         - $ref: '#/components/parameters/collectionId'
         - $ref: '#/components/parameters/recordId'
-        - $ref: '#/components/parameters/source'
       requestBody:
         required: true
         content:
@@ -333,7 +331,6 @@ paths:
       parameters:
         - $ref: '#/components/parameters/collectionId'
         - $ref: '#/components/parameters/recordId'
-        - $ref: '#/components/parameters/source'
       responses:
         '200':
           $ref: '#/components/responses/200Success'
@@ -359,14 +356,6 @@ components:
       schema:
         type: string
         example: f08a255e-2c11-49dd-bdf9-88a0dcbe2aa6
-    source:
-      name: source
-      in: query
-      description: The mandatory source parameter denotes the origin point of the dataset. It influences the merging strategy for competing datasets. Interpreted values are `cockpit`, `cockpitpro`, `beteiligungsdb`.
-      required: true
-      schema:
-        type: string
-        example: cockpit
     q:
       name: q
       in: query