diff --git a/CHANGES.md b/CHANGES.md
index 2578bcdbc..a7369d015 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,14 @@ deprecation
 policy](https://element-hq.github.io/synapse/latest/deprecation_policy.html#platform-dependencies),
 as it is now [end of life](https://endoflife.date/python).
 
+## SQLite 3.40.0+ is now required.
+
+The minimum supported SQLite version has been increased from 3.27.0 to 3.40.0.
+
+If you use current versions of the
+[matrixorg/synapse](setup/installation.html#docker-images-and-ansible-playbooks)
+Docker images, no action is required.
+
 
 ## Deprecation of MacOS Python wheels
 
diff --git a/docs/upgrade.md b/docs/upgrade.md
index faf6cbf8d..d38d07ca8 100644
--- a/docs/upgrade.md
+++ b/docs/upgrade.md
@@ -119,7 +119,7 @@ stacking them up. You can monitor the currently running background updates with
 
 # Upgrading to v1.142.0
 
-## Minimum supported Python version
+## Python 3.10+ is now required
 
 The minimum supported Python version has been increased from v3.9 to v3.10.
 You will need Python 3.10+ to run Synapse v1.142.0.
@@ -128,6 +128,14 @@ If you use current versions of the
 [matrixorg/synapse](setup/installation.html#docker-images-and-ansible-playbooks)
 Docker images, no action is required.
 
+## SQLite 3.40.0+ is now required.
+
+The minimum supported SQLite version has been increased from 3.27.0 to 3.40.0.
+
+If you use current versions of the
+[matrixorg/synapse](setup/installation.html#docker-images-and-ansible-playbooks)
+Docker images, no action is required.
+
 
 # Upgrading to v1.141.0