diff --git a/worker/Dockerfile.mdbook b/worker/Dockerfile.mdbook
index 59d2beb..092ab39 100644
--- a/worker/Dockerfile.mdbook
+++ b/worker/Dockerfile.mdbook
@@ -1,4 +1,4 @@
-FROM rust:1.72
+FROM rust:1.79
 COPY worker-setup.sh worker-setup.sh
 RUN bash worker-setup.sh
 USER buildbot