diff --git a/Dockerfile b/Dockerfile
index 52535c3..eea4b19 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG SYNAPSE_VERSION=1.46.0
+ARG SYNAPSE_VERSION=1.47.0
 ARG PYTHON_VERSION=3.9
 ARG ALPINE_VERSION=3.14
 ARG HARDENED_MALLOC_VERSION=8