diff --git a/changelog.d/11164.misc b/changelog.d/11164.misc
new file mode 100644
index 000000000000..751da4918305
--- /dev/null
+++ b/changelog.d/11164.misc
@@ -0,0 +1 @@
+Add type hints so that `synapse.http` passes `mypy` checks.
\ No newline at end of file