diff --git a/Dockerfile b/Dockerfile
index ff42ce0..e1b3426 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG SYNAPSE_VERSION=1.36.0
 ARG PYTHON_VERSION=3.8
-ARG ALPINE_VERSION=3.14
+ARG ALPINE_VERSION=3.13
 ARG HARDENED_MALLOC_VERSION=8
 ARG UID=991
 ARG GID=991