diff --git a/Dockerfile b/Dockerfile
index 00deea3..e3fdb75 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # Multi-stage build for Barycenter OpenID Connect IdP
 # Build stage
-FROM rust:1.83-bookworm AS builder
+FROM rust:1.91-bookworm AS builder
 
 WORKDIR /build