diff --git a/Dockerfile b/Dockerfile
index ed5921d..862af4f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG SYNAPSE_VERSION=1.114.0
+ARG SYNAPSE_VERSION=1.115.0rc1
 ARG PYTHON_VERSION=3.12
 ARG HARDENED_MALLOC_VERSION=2024080500
 ARG UID=991