diff --git a/.github/workflows/twisted_trunk.yml b/.github/workflows/twisted_trunk.yml
index 0bf7790545..b5c729888f 100644
--- a/.github/workflows/twisted_trunk.yml
+++ b/.github/workflows/twisted_trunk.yml
@@ -82,8 +82,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: JasonEtco/create-an-issue@v2
+      - uses: JasonEtco/create-an-issue@5d9504915f79f9cc6d791934b8ef34f2353dd74d # v2.5.0, 2020-12-06
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
+          update_existing: true
           filename: .ci/twisted_trunk_build_failed_issue_template.md
diff --git a/changelog.d/10672.misc b/changelog.d/10672.misc
new file mode 100644
index 0000000000..7104c121e0
--- /dev/null
+++ b/changelog.d/10672.misc
@@ -0,0 +1 @@
+Run a nightly CI build against Twisted trunk.