diff --git a/Dockerfile b/Dockerfile
index 7f54497..10b80d2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # --- build image
 
-FROM rust:1.64 AS builder
+FROM rust:1.65 AS builder
 
 RUN rustup target add x86_64-unknown-linux-musl
 RUN apt update && apt install -y musl-tools musl-dev