diff --git a/.github/workflows/codex-review.yml b/.github/workflows/codex-review.yml
deleted file mode 100644
index d50bfc6c..00000000
--- a/.github/workflows/codex-review.yml
+++ /dev/null
@@ -1,86 +0,0 @@
-name: Codex Review
-
-on:
-  pull_request_target:
-    types: [opened, labeled, reopened, ready_for_review]
-    paths-ignore:
-      - '**.md'
-      - '**.rst'
-      - 'LICENSE.txt'
-      - 'doc/**/*.txt'
-      - '**/AUTHORS'
-      - '**/SPONSORS'
-      - '**/TIPS'
-
-jobs:
-  codex-review:
-    if: github.event.pull_request.draft == false || (github.event.action == 'labeled' && contains(github.event.pull_request.labels.*.name, 'codex'))
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-    outputs:
-      final_message: ${{ steps.run_codex.outputs.final-message }}
-
-    steps:
-      - name: Check out PR merge commit
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-        with:
-          ref: refs/pull/${{ github.event.pull_request.number }}/merge
-
-      - name: Fetch base and head refs
-        run: |
-          git fetch --no-tags origin \
-            ${{ github.event.pull_request.base.ref }} \
-            +refs/pull/${{ github.event.pull_request.number }}/head
-
-      - name: Run Codex review
-        id: run_codex
-        uses: openai/codex-action@e0fdf01220eb9a88167c4898839d273e3f2609d1 # v1.8
-        env:
-          # Use env variables to handle untrusted metadata safely
-          PR_TITLE: ${{ github.event.pull_request.title }}
-          PR_BODY: ${{ github.event.pull_request.body }}
-        with:
-          openai-api-key: ${{ secrets.OPENAI_API_KEY }}
-          prompt: |
-            You are reviewing PR #${{ github.event.pull_request.number }} for ${{ github.repository }}.
-
-            Only review changes introduced by this PR:
-            git log --oneline ${{ github.event.pull_request.base.sha }}...${{ github.event.pull_request.head.sha }}
-
-            Focus on:
-            - correctness bugs and regressions
-            - security concerns
-            - missing tests or edge cases
-
-            Keep feedback concise and actionable.
-
-            Pull request title and body:
-            ----
-            $PR_TITLE
-            $PR_BODY
-
-  post-feedback:
-    runs-on: ubuntu-latest
-    needs: codex-review
-    if: needs.codex-review.outputs.final_message != ''
-    permissions:
-      issues: write
-      pull-requests: write
-
-    steps:
-      - name: Post Codex review as PR comment
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
-        env:
-          CODEX_FINAL_MESSAGE: |
-            ${{ format('## Codex Review
-            {0}', needs.codex-review.outputs.final_message) }}
-        with:
-          github-token: ${{ github.token }}
-          script: |
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.payload.pull_request.number,
-              body: process.env.CODEX_FINAL_MESSAGE,
-            });
diff --git a/changelog.md b/changelog.md
index e54e2b44..6d04e639 100644
--- a/changelog.md
+++ b/changelog.md
@@ -5,6 +5,7 @@ Internal
 --------
 * Add test coverage for `client_commands.py`.
 * Add test coverage for `cli_runner.py`.
+* Remove Codex PR Review action, which stopped working.
 
 
 1.74.1 (2026/06/18)