diff --git a/src/.docker_modules/g2gtools/0.2.8/Dockerfile b/src/.docker_modules/g2gtools/0.2.8/Dockerfile
index da2cdb97d456b6c45341ed09527fab129f57dfb4..9f053ec358adf79dc2001908a0039627b7d2ca61 100644
--- a/src/.docker_modules/g2gtools/0.2.8/Dockerfile
+++ b/src/.docker_modules/g2gtools/0.2.8/Dockerfile
@@ -8,6 +8,7 @@ RUN apk add --update --no-cache bash musl-dev linux-headers g++ cmake make build
  && tar -xvf v${G2GTOOLS_VERSION}.tar.gz \
  && cd g2gtools-${G2GTOOLS_VERSION} \
  && pip install numpy \
+ && pip install pysam \
  && make install