diff --git a/Dockerfile b/Dockerfile
index 1e49981..ba1dd0c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG SYNAPSE_VERSION=1.71.0
+ARG SYNAPSE_VERSION=1.70.1
 ARG PYTHON_VERSION=3.10
 ARG ALPINE_VERSION=3.16
 ARG HARDENED_MALLOC_VERSION=11