diff --git a/docker/Dockerfile.api b/docker/Dockerfile.api
index 5b40ca6..81fe5af 100644
--- a/docker/Dockerfile.api
+++ b/docker/Dockerfile.api
@@ -7,7 +7,8 @@ RUN apk add --no-cache musl-dev pkgconfig openssl-dev openssl-libs-static
 WORKDIR /build
 
 # Cache dependencies — copy manifests first
-COPY Cargo.toml Cargo.lock ./
+COPY Cargo.toml ./
+COPY Cargo.lock* ./
 RUN mkdir src && echo "fn main() {}" > src/main.rs
 RUN cargo build --release 2>/dev/null || true