diff --git a/Dockerfile b/Dockerfile
index 0020634..8045211 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.32.0-slim-stretch
+FROM rust:1.47.0-slim-stretch
 
 # Prevent any error messages about there not being a terminal
 ENV DEBIAN_FRONTEND noninteractive