diff --git a/Dockerfile b/Dockerfile
index e1f9bac13dacd108322191a02aef640da1a63806..9fcb1ed66315d84dfe6e322a4094bc1d19510e9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.67 AS builder
+FROM rust:1.73 AS builder
 
 RUN cargo install mdbook mdbook-toc mdbook-mermaid
 
@@ -8,4 +8,4 @@ RUN mdbook build
 
 FROM nginx:latest
 
-COPY --from=builder /opt/src/book/html /usr/share/nginx/html
\ No newline at end of file
+COPY --from=builder /opt/src/book/html /usr/share/nginx/html