diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 8f48a33936..79ae06ce5d 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -74,17 +74,19 @@ REQUIREMENTS = [
# Note: 21.1.0 broke `/sync`, see #9936
"attrs>=19.2.0,!=21.1.0",
"netaddr>=0.7.18",
- "Jinja2>=2.9",
+ # Jinja2 3.1.0 removes the deprecated jinja2.Markup class, which we rely on.
+ "Jinja2<3.1.0",
"bleach>=1.4.3",
- "typing-extensions>=3.7.4",
+ # We use `ParamSpec`, which was added in `typing-extensions` 3.10.0.0.
+ "typing-extensions>=3.10.0",
# We enforce that we have a `cryptography` version that bundles an `openssl`
# with the latest security patches.
"cryptography>=3.4.7",
# ijson 3.1.4 fixes a bug with "." in property names
"ijson>=3.1.4",
"matrix-common~=1.1.0",
- # For runtime introspection of our dependencies
- "packaging~=21.3",
+ # We need packaging.requirements.Requirement, added in 16.1.
+ "packaging>=16.1",
]
CONDITIONAL_REQUIREMENTS = {
|
