diff --git a/cluster/docker/sv-dune.Dockerfile b/cluster/docker/sv-dune.Dockerfile
index 14437c4a..addb6fe5 100644
--- a/cluster/docker/sv-dune.Dockerfile
+++ b/cluster/docker/sv-dune.Dockerfile
@@ -2,7 +2,7 @@ FROM --platform=$BUILDPLATFORM tonistiigi/xx AS xx
 FROM --platform=$BUILDPLATFORM rust:1.90.0-bookworm AS chef
 
 ARG TARGETPLATFORM
-RUN cargo install cargo-chef
+RUN cargo install cargo-chef --locked
 WORKDIR /build/
 
 COPY --from=xx / /