diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d9facabbe1..87c6fb93d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -101,6 +101,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.ref  }}
       - name: Setup python
         uses: actions/setup-python@v2
         if: "!endsWith(matrix.python, '-dev')"
@@ -124,10 +126,11 @@ jobs:
         continue-on-error: true
         if: failure() && matrix.check_formatting == '1' && github.actor == 'dependabot[bot]'
         run: |
+          black setup.py trio
           git config user.name 'github-actions[bot]'
           git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
           git commit -am "Autoformatter changes"
-          git push origin "HEAD:${GITHUB_HEAD_REF}"
+          git push
 
   macOS:
     name: 'macOS (${{ matrix.python }})'
diff --git a/docs-requirements.txt b/docs-requirements.txt
index 46c19380e3..ae4527f7c7 100644
--- a/docs-requirements.txt
+++ b/docs-requirements.txt
@@ -86,6 +86,8 @@ sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 sphinxcontrib-trio==1.1.2
     # via -r docs-requirements.in
+tomli==2.0.1
+    # via towncrier
 towncrier==22.12.0
     # via -r docs-requirements.in
 urllib3==1.26.14
diff --git a/test-requirements.txt b/test-requirements.txt
index e6d832f9d0..8676cb210a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -17,7 +17,7 @@ attrs==22.2.0
     #   pytest
 backcall==0.2.0
     # via ipython
-black==22.12.0 ; implementation_name == "cpython"
+black==23.1.0 ; implementation_name == "cpython"
     # via -r test-requirements.in
 build==0.10.0
     # via pip-tools
@@ -78,6 +78,7 @@ outcome==1.2.0
     # via -r test-requirements.in
 packaging==23.0
     # via
+    #   black
     #   build
     #   pytest
 parso==0.8.3