diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 8cecd24268..1750697400 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.11.9 (24.01.2022)
+~~~~~~~~~~~~~~~~~~~
+
+ * Fix: Update Pillow dependency to allow 9.x (Rizwan Mansuri)
+
+
 2.11.8 (17.06.2021)
 ~~~~~~~~~~~~~~~~~~~
 
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index d0c761110f..3d4b4c0a0a 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -489,6 +489,7 @@ Contributors
 * Kristin Riebe
 * Helder Correia
 * Kevin Breen
+* Rizwan Mansuri
 
 Translators
 ===========
diff --git a/docs/releases/2.11.9.rst b/docs/releases/2.11.9.rst
new file mode 100644
index 0000000000..e018f434e8
--- /dev/null
+++ b/docs/releases/2.11.9.rst
@@ -0,0 +1,16 @@
+============================
+Wagtail 2.11.9 release notes
+============================
+
+.. contents::
+    :local:
+    :depth: 1
+
+
+What's new
+==========
+
+Bug fixes
+~~~~~~~~~
+
+ * Update Pillow dependency to allow 9.x (Rizwan Mansuri)
diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index c592ff8337..f6ad30e187 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -5,6 +5,7 @@ Release notes
    :maxdepth: 1
 
    upgrading
+   2.11.9
    2.11.8
    2.11.7
    2.11.6
diff --git a/setup.py b/setup.py
index 57dcb4ff5d..b5b162f6fd 100755
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ install_requires = [
     "djangorestframework>=3.11.1,<4.0",
     "django-filter>=2.2,<3.0",
     "draftjs_exporter>=2.1.5,<3.0",
-    "Pillow>=4.0.0,<9.0.0",
+    "Pillow>=4.0.0,<10.0.0",
     "beautifulsoup4>=4.8,<4.9",
     "html5lib>=0.999,<2",
     # RemovedInWagtail212Warning: unidecode is only used by _migrate_legacy_clean_name in wagtail.contrib.forms
diff --git a/wagtail/__init__.py b/wagtail/__init__.py
index 50dbf6d553..634409deee 100644
--- a/wagtail/__init__.py
+++ b/wagtail/__init__.py
@@ -7,7 +7,7 @@ from wagtail.utils.version import get_semver_version, get_version
 
 # major.minor.patch.release.number
 # release must be one of alpha, beta, rc, or final
-VERSION = (2, 11, 8, 'final', 1)
+VERSION = (2, 11, 9, 'final', 1)
 
 __version__ = get_version(VERSION)