diff --git a/docker/prod/Dockerfile.arm b/docker/prod/Dockerfile.arm
index a7a35afd..fd1ad406 100644
--- a/docker/prod/Dockerfile.arm
+++ b/docker/prod/Dockerfile.arm
@@ -1,4 +1,4 @@
-ARG RUST_BUILDER_IMAGE=rust:1.51-slim
+ARG RUST_BUILDER_IMAGE=rust:1.56-slim
 
 # Build Lemmy
 FROM $RUST_BUILDER_IMAGE as builder