diff --git a/Dockerfile b/Dockerfile
index 8c04964..fc2bb29 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.16.2
+FROM alpine:edge
 RUN apk add --no-cache gcc g++ musl-dev libc-dev cmake git samurai coreutils rpm dpkg dpkg-dev xz file
 
 RUN mkdir -p /usr/src/yerbacon
@@ -6,7 +6,7 @@ WORKDIR /usr/src/
 RUN git clone --quiet -n --branch devel4 https://github.com/upx/upx/
 ARG CMAKE_BUILD_TYPE="Release"
 WORKDIR ./upx
-RUN git checkout --quiet 73377971d48e88a99f53372f6520e1eec6ec453b
+RUN git checkout --quiet HEAD
 RUN git submodule --quiet update --init
 RUN mkdir -p ./build/release
 WORKDIR ./build/release