diff --git a/Dockerfile.old b/Dockerfile.old
index 7fd1976..3c97149 100644
--- a/Dockerfile.old
+++ b/Dockerfile.old
@@ -1,7 +1,7 @@
-FROM alpine:3.9 as builder
+FROM alpine:3.11 as builder
 MAINTAINER github@erebe.eu
 
-RUN apk --no-cache add ca-certificates git ghc curl musl-dev gmp-dev zlib-dev pcre-dev xz make upx
+RUN apk --no-cache add ca-certificates git ghc curl musl-dev gmp-dev zlib-dev zlib-static pcre-dev xz make upx
 RUN curl -sSL https://github.com/commercialhaskell/stack/releases/download/v2.1.3/stack-2.1.3-linux-x86_64-static.tar.gz | tar xvz && \
     mv stack*/stack /usr/bin
 
@@ -12,13 +12,13 @@ WORKDIR /mnt
 RUN rm -rf ~/.stack &&  \
     stack config set system-ghc --global true && \
     stack setup && \
-    stack install --split-objs --ghc-options="-fPIC -fllvm" --only-dependencies
+    stack install --split-objs --ghc-options="-fPIC" --only-dependencies
 
 COPY . /mnt
 
 RUN echo '  ld-options: -static' >> wstunnel.cabal ; \
-    stack install --split-objs --ghc-options="-fPIC -fllvm"
-RUN upx --ultra-brute /root/.local/bin/wstunnel
+    stack install --split-objs --ghc-options="-fPIC"
+#RUN upx /root/.local/bin/wstunnel