diff --git a/src/.docker_modules/bwa/0.7.17/Dockerfile b/src/.docker_modules/bwa/0.7.17/Dockerfile
index eaae571bccea25e5f9938667009f7d3a1290b48f..b5b5859a8f29564c5f260a094890223d4f04ebda 100644
--- a/src/.docker_modules/bwa/0.7.17/Dockerfile
+++ b/src/.docker_modules/bwa/0.7.17/Dockerfile
@@ -4,14 +4,11 @@ MAINTAINER Laurent Modolo
 ENV BWA_VERSION=0.7.17
 ENV SAMBLASTER_VERSION=0.1.24
 
-ENV PACKAGES curl=7.58* \
-    ca-certificates=20180409 \
-    build-essential=12.4* \
-    zlib1g-dev=1:1.2.11*
+ENV PACKAGES curl \
+  g++
 
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends ${PACKAGES} && \
-    apt-get clean
+RUN apk update && \
+    apk add ${PACKAGES}
 
 RUN curl -k -L https://github.com/lh3/bwa/releases/download/v${BWA_VERSION}/bwa-${BWA_VERSION}.tar.bz2 -o bwa-v${BWA_VERSION}.tar.bz2 && \
 tar xjf bwa-v${BWA_VERSION}.tar.bz2 && \
@@ -21,11 +18,3 @@ cp bwa /usr/bin && \
 cd .. && \
 rm -R bwa-${BWA_VERSION}/
 
-RUN curl -k -L https://github.com/GregoryFaust/samblaster/releases/download/v.${SAMBLASTER_VERSION}/samblaster-v.${SAMBLASTER_VERSION}.tar.gz -o samblaster-v.${SAMBLASTER_VERSION}.tar.gz && \
-tar xvf samblaster-v.${SAMBLASTER_VERSION}.tar.gz && \
-cd samblaster-v.${SAMBLASTER_VERSION}/ && \
-make && \
-cp samblaster /usr/bin && \
-cd .. && \
-rm -R samblaster-v.${SAMBLASTER_VERSION}/
-RUN chmod +x /usr/bin/*