diff --git a/.github/labeler.yml b/.github/labeler.yml
deleted file mode 100644
index adee762bfc..0000000000
--- a/.github/labeler.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-# Make sure any dependency changes are benchmarked (only changes to the locks
-#  make a material difference - changes to the Conda YAML files are not
-#  benchmarked).
-benchmark_this:
-- changed-files:
-  - any-glob-to-any-file: 'requirements/locks/*.lock'
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
deleted file mode 100644
index 7914ec2531..0000000000
--- a/.github/workflows/labeler.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-# Reference
-#   - https://github.com/actions/labeler
-
-name: "Pull Request Labeler"
-on:
-- pull_request_target
-
-jobs:
-  labeler:
-    permissions:
-      contents: read
-      pull-requests: write
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/labeler@v5
\ No newline at end of file
diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst
index ab5d18d3eb..a174fd2cfb 100644
--- a/docs/src/whatsnew/latest.rst
+++ b/docs/src/whatsnew/latest.rst
@@ -72,11 +72,7 @@ This document explains the changes made to Iris for this release
 💼 Internal
 ===========
 
-#. `@trexfeathers`_ used the `Pull Request Labeler Github action`_ to add the
-   ``benchmark_this`` label (:ref:`more info <on_demand_pr_benchmark>`) to
-   pull requests that modify ``requirements/locks/*.lock`` files - ensuring
-   that we know whether dependency changes will affect performance.
-   (:pull:`5763`)
+#. N/A
 
 
 .. comment
@@ -88,5 +84,3 @@ This document explains the changes made to Iris for this release
 
 .. comment
     Whatsnew resources in alphabetical order:
-
-.. _Pull Request Labeler GitHub action: https://github.com/actions/labeler