2 files changed, 3 insertions, 2 deletions
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 5eac40730a..441cd8b339 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -47,7 +47,7 @@ try:
except ImportError:
pass
-__version__ = "1.33.0"
+__version__ = "1.33.1"
if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
# We import here so that we don't have to install a bunch of deps when
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index d58eeeaa74..2113c620c6 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -78,7 +78,8 @@ REQUIREMENTS = [
# we use attr.validators.deep_iterable, which arrived in 19.1.0 (Note:
# Fedora 31 only has 19.1, so if we want to upgrade we should wait until 33
# is out in November.)
- "attrs>=19.1.0",
+ # Note: 21.1.0 broke `/sync`, see #9936
+ "attrs>=19.1.0,<21.1.0",
"netaddr>=0.7.18",
"Jinja2>=2.9",
"bleach>=1.4.3",
|