diff --git a/.github/workflows/step_tests-pip.yml b/.github/workflows/step_tests-pip.yml
index 43564714..f4a0625c 100644
--- a/.github/workflows/step_tests-pip.yml
+++ b/.github/workflows/step_tests-pip.yml
@@ -40,8 +40,10 @@ jobs:
             no_markdown-it-py: true
           - python-version: "3.x"
             no_kernel: true
-          - python-version: "3.x"
-            quarto: true
+          # TODO: Quarto 1.5.54 introduces a new markdown cell at the
+          # top of the notebook, see #1255
+          # - python-version: "3.x"
+          #  quarto: true
 
     steps:
       - name: Checkout
diff --git a/CHANGELOG.md b/CHANGELOG.md
index df7a4c55..39dec8df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,10 @@ Jupytext ChangeLog
 - Go notebooks are supported too ([#1244](https://github.com/mwouts/jupytext/issues/1244))! Many thanks to [Jan Pfeifer](https://github.com/janpfeifer), author of [GoNB](https://github.com/janpfeifer/gonb), and to [HaveF](https://github.com/HaveF) for their help on this topic.
 - Empty prefixes are now allowed in Jupytext format when specified as a dictionary ([#1144](https://github.com/mwouts/jupytext/issues/1144))
 
+**Changed**
+- We've had to deactivate the tests on the Quarto format in the CI as the Quarto round trip
+might now add a Markdown cell to the notebook ([#1255](https://github.com/mwouts/jupytext/issues/1255))
+
 
 1.16.2 (2024-05-05)
 -------------------