diff --git a/docker/matrix/homeserver.yaml b/docker/matrix/homeserver.yaml
index 227b7cad0..d18774c53 100644
--- a/docker/matrix/homeserver.yaml
+++ b/docker/matrix/homeserver.yaml
@@ -80,8 +80,8 @@ password_config:
   localdb_enabled: true
   pepper: "${SYNAPSE_PASSWORD_PEPPER:-change-me-pepper}"
 
-# Session lifetime
-session_lifetime: 24h
+# Session lifetime (must be >= refresh_token_lifetime)
+session_lifetime: 168h
 refresh_token_lifetime: 168h
 
 # ============================================