diff --git a/Dockerfile b/Dockerfile
index 100d8b924..c9245b211 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@
 # The Debian version and version name must be in sync
 ARG DEBIAN_VERSION=11
 ARG DEBIAN_VERSION_NAME=bullseye
-ARG RUSTC_VERSION=1.57.0
+ARG RUSTC_VERSION=1.56.1
 ARG NODEJS_VERSION=16
 
 ## Build stage that builds the static files/frontend ##