diff --git a/docker/sia/Dockerfile b/docker/sia/Dockerfile
index 887b92e9..ed1690db 100644
--- a/docker/sia/Dockerfile
+++ b/docker/sia/Dockerfile
@@ -5,10 +5,10 @@ ENV GOARCH amd64
 
 ARG branch=portal-latest
 
-RUN git clone https://gitlab.com/SkynetLabs/skyd.git Sia --single-branch --branch ${branch}
-RUN make release --directory Sia
+RUN git clone https://gitlab.com/SkynetLabs/skyd.git Sia --single-branch --branch ${branch} && \
+    make release --directory Sia
 
-FROM nebulouslabs/sia:latest
+FROM nebulouslabs/sia:1.5.6
 
 COPY --from=sia-builder /go/bin/ /usr/bin/