diff --git a/Dockerfile b/Dockerfile
index 336415b..2b31186 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-ARG SYNAPSE_VERSION=1.108.0
+ARG SYNAPSE_VERSION=1.109.0rc1
 ARG PYTHON_VERSION=3.12
-ARG HARDENED_MALLOC_VERSION=2024053100
+ARG HARDENED_MALLOC_VERSION=2024060400
 ARG UID=991
 ARG GID=991