diff --git a/deploy/vps/Dockerfile b/deploy/vps/Dockerfile
index cbde825..9a6a263 100644
--- a/deploy/vps/Dockerfile
+++ b/deploy/vps/Dockerfile
@@ -6,7 +6,7 @@ RUN npm ci
 COPY web/ ./
 RUN npm run build -- --mode production
 
-FROM hseeberger/scala-sbt:17.0.2_1.8.2_2.13.10 AS scala-build
+FROM hseeberger/scala-sbt:17.0.2_1.6.2_2.13.8 AS scala-build
 
 WORKDIR /build
 COPY build.sbt ./