diff --git a/.env b/.env
index 91e320f..b80fa55 100644
--- a/.env
+++ b/.env
@@ -1,3 +1,3 @@
 # Versions must be major.minor
 ALPINE_VERSION=3.19
-RUST_VERSION=1.77
+RUST_VERSION=1.78
diff --git a/Dockerfile b/Dockerfile
index 064677a..f9542af 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # Versions must be major.minor
-ARG RUST_VERSION=1.77
-ARG ALPINE_VERSION=3.19
+ARG RUST_VERSION
+ARG ALPINE_VERSION
 
 FROM docker.io/rust:${RUST_VERSION}-alpine${ALPINE_VERSION} AS builder
 COPY . /data