diff --git a/Dockerfile b/Dockerfile
index a53d8ec..ea757ce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM debian:buster-slim
 
-ARG RUST_VER=1.42.0
+ARG RUST_VER=1.43.0
 
 RUN apt update -y -q \
  && apt upgrade -y -q \