diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..6847c9d
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+target
+.git
+*.md
+assets
diff --git a/Dockerfile b/Dockerfile
index 42d5e4d..2a955f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,7 @@
-FROM rust:1.78 as builder
+# A dependency in Cargo.lock requires the Rust 2024 edition (Rust >= 1.85),
+# so the old rust:1.78 base failed to build. Track latest stable 1.x on
+# bookworm so the produced binary is glibc-compatible with the runtime stage.
+FROM rust:1-bookworm AS builder
 WORKDIR /app
 COPY . .
 RUN cargo build --release