diff --git a/doc/changelog.rst b/doc/changelog.rst
index d9e6cc3f5b..d185e3c728 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -13,6 +13,7 @@ PyMongo 4.11 brings a number of changes including:
 - Dropped support for Python 3.8.
 - Dropped support for MongoDB 3.6.
 - Dropped support for the MONGODB-CR authenticate mechanism, which is no longer supported by MongoDB 4.0+.
+- pymongocrypt>=1.12 is now required for :ref:`In-Use Encryption` support.
 - Added support for free-threaded Python with the GIL disabled. For more information see:
   `Free-threaded CPython <https://docs.python.org/3.13/whatsnew/3.13.html#whatsnew313-free-threaded-cpython>`_.
 - :attr:`~pymongo.asynchronous.mongo_client.AsyncMongoClient.address` and
diff --git a/requirements/encryption.txt b/requirements/encryption.txt
index 1a8c14844c..5962f5028f 100644
--- a/requirements/encryption.txt
+++ b/requirements/encryption.txt
@@ -1,3 +1,3 @@
 pymongo-auth-aws>=1.1.0,<2.0.0
-pymongocrypt>=1.10.0,<2.0.0
+pymongocrypt>=1.12.0,<2.0.0
 certifi;os.name=='nt' or sys_platform=='darwin'