--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,12 +1,8 @@
 FROM alpine:edge
 
 RUN apk add --no-cache \
-	gcc \
-	make \
-	g++ \
-	curl \
-	cmake \
-	clang \
-	linux-headers
-RUN apk add --no-cache rustup && rustup-init --default-toolchain nightly -y -t wasm32-wasi
+	clang gcc g++ make cmake curl \
+	openjdk8-jre-base \
+	rustup && \
+	rustup-init --default-toolchain nightly -y -t wasm32-wasi
 ENV PATH /root/.rustup/toolchains/nightly-x86_64-unknown-linux-musl/bin/:/root/.cargo/bin/:${PATH}