diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 25af93af2804f..95ce051f32f60 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -704,7 +704,7 @@ jobs:
       if: inputs.branch != 'branch-3.3' && inputs.branch != 'branch-3.4'
       run: |
         # See more in "Installation" https://docs.buf.build/installation#tarball
-        curl -LO https://github.com/bufbuild/buf/releases/download/v1.26.1/buf-Linux-x86_64.tar.gz
+        curl -LO https://github.com/bufbuild/buf/releases/download/v1.28.1/buf-Linux-x86_64.tar.gz
         mkdir -p $HOME/buf
         tar -xvzf buf-Linux-x86_64.tar.gz -C $HOME/buf --strip-components 1
         rm buf-Linux-x86_64.tar.gz
diff --git a/python/docs/source/development/contributing.rst b/python/docs/source/development/contributing.rst
index d6d5283c1e3e4..ad61ba95d6956 100644
--- a/python/docs/source/development/contributing.rst
+++ b/python/docs/source/development/contributing.rst
@@ -120,7 +120,7 @@ Prerequisite
 
 PySpark development requires to build Spark that needs a proper JDK installed, etc. See `Building Spark <https://spark.apache.org/docs/latest/building-spark.html>`_ for more details.
 
-Note that if you intend to contribute to Spark Connect in Python, ``buf`` version ``1.26.1`` is required, see `Buf Installation <https://docs.buf.build/installation>`_ for more details.
+Note that if you intend to contribute to Spark Connect in Python, ``buf`` version ``1.28.1`` is required, see `Buf Installation <https://docs.buf.build/installation>`_ for more details.
 
 Conda
 ~~~~~