diff --git a/Cargo.lock b/Cargo.lock
index 6062122c15..13228a5542 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -750,9 +750,9 @@ checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
 [[package]]
 name = "log"
-version = "0.4.33"
+version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad"
+checksum = "f9f8bd3e56ce4dfc153cf470fffbfa98c7620958b312ca5c3a4b8d5181fd13c6"
 
 [[package]]
 name = "lru-slab"
diff --git a/changelog.d/20209.doc b/changelog.d/20209.doc
new file mode 100644
index 0000000000..cfee70c67c
--- /dev/null
+++ b/changelog.d/20209.doc
@@ -0,0 +1 @@
+Document the paths that can be handled on workers with stabilised delegated authentication.
diff --git a/changelog.d/20210.doc b/changelog.d/20210.doc
new file mode 100644
index 0000000000..3b0f828036
--- /dev/null
+++ b/changelog.d/20210.doc
@@ -0,0 +1 @@
+Document the endpoint for getting a single delayed event is workerisable.
diff --git a/docs/workers.md b/docs/workers.md
index 8959becea6..5587ba9c6d 100644
--- a/docs/workers.md
+++ b/docs/workers.md
@@ -291,6 +291,9 @@ information.
     # Unstable MSC4140 support
     ^/_matrix/client/unstable/org.matrix.msc4140/delayed_events(/.*/restart)?$
 
+    # Stabilised Delegated Authentication support (`matrix_authentication_service.enabled: true`)
+    ^/_synapse/mas/
+
 Additionally, the following REST endpoints can be handled for GET requests:
 
     # Push rules requests
@@ -306,6 +309,9 @@ Additionally, the following REST endpoints can be handled for GET requests:
     # Admin API requests
     ^/_synapse/admin/v2/users/[^/]+$
 
+    # Unstable MSC4140 support
+    ^/_matrix/client/unstable/org.matrix.msc4140/delayed_events/[^/]+$
+
 Pagination requests can also be handled, but all requests for a given
 room must be routed to the same instance. Additionally, care must be taken to
 ensure that the purge history admin API is not used while pagination requests
@@ -315,7 +321,7 @@ for the room are in flight:
 
 Additionally, the following endpoints should be included if Synapse is configured
 to use SSO (you only need to include the ones for whichever SSO provider you're
-using):
+using) and delegated authentication isn't enabled:
 
     # for all SSO providers
     ^/_matrix/client/(api/v1|r0|v3|unstable)/login/sso/redirect
diff --git a/poetry.lock b/poetry.lock
index 508379acd5..572cd5d195 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -583,14 +583,14 @@ smmap = ">=3.0.1,<6"
 
 [[package]]
 name = "gitpython"
-version = "3.1.58"
+version = "3.1.62"
 description = "GitPython is a Python library used to interact with Git repositories"
 optional = false
 python-versions = ">=3.7"
 groups = ["dev"]
 files = [
-    {file = "gitpython-3.1.58-py3-none-any.whl", hash = "sha256:d331e722577f0fd7fc1f857419b3ecc07af66282b933d2a4d95f84a042fdd50f"},
-    {file = "gitpython-3.1.58.tar.gz", hash = "sha256:621416df10ef3fd0e19fabf9172ddeed0fa704d353d04f194eec56a625a95b22"},
+    {file = "gitpython-3.1.62-py3-none-any.whl", hash = "sha256:7002251225e10e29d2e1f49e6532613fe5d5d9f0b6f1f02997a52b38fe56899e"},
+    {file = "gitpython-3.1.62.tar.gz", hash = "sha256:1791de66309bc0c7cfca40bf8d2e3de7ca091cbf94e6051be1ad0722c61062af"},
 ]
 
 [package.dependencies]