diff --git a/Dockerfile b/Dockerfile
index f2b0dae..bdedf0a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ workdir /src
 copy . .
 run --mount=type=cache,id=novit-rs,target=/usr/local/cargo/registry \
     --mount=type=cache,id=novit-rs-target,sharing=private,target=/src/target \
-    RUSTFLAGS="-C target-feature=-crt-static" cargo install --path . --root /dist
+    RUSTFLAGS="-C target-feature=-crt-static" cargo install --frozen --path . --root /dist
 
 # ------------------------------------------------------------------------
 from alpine:3.23.4 as system