diff --git a/.github/workflows/twisted_trunk.yml b/.github/workflows/twisted_trunk.yml
index b4e26118c..f592e632c 100644
--- a/.github/workflows/twisted_trunk.yml
+++ b/.github/workflows/twisted_trunk.yml
@@ -151,12 +151,11 @@ jobs:
         run: |
           set -x
           DEBIAN_FRONTEND=noninteractive sudo apt-get install -yqq python3 pipx
-          pipx install poetry==1.1.14
+          pipx install poetry==1.2.0
 
           poetry remove -n twisted
           poetry add -n --extras tls git+https://github.com/twisted/twisted.git#trunk
           poetry lock --no-update
-          # NOT IN 1.1.14 poetry lock --check
         working-directory: synapse
 
       - run: |
diff --git a/changelog.d/14305.misc b/changelog.d/14305.misc
new file mode 100644
index 000000000..a77bd947a
--- /dev/null
+++ b/changelog.d/14305.misc
@@ -0,0 +1 @@
+Use Poetry 1.2.0 in the Twisted Trunk CI job.