diff --git a/Dockerfile b/Dockerfile
index 70d2fd0..48d4b2e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -77,7 +77,7 @@ RUN wget --quiet "https://github.com/BenLangmead/bowtie2/releases/download/v2.3.
 
 RUN git clone https://github.com/rrwick/Unicycler.git \
  && cd /home/unicycler/Unicycler \
- && git checkout v0.4.7 \
+ && git checkout ea9f1dc \
  && python3 setup.py install \
  && cd .. \
  && rm -rf /home/unicycler/Unicycler
diff --git a/IMAGE b/IMAGE
index c7a0053..819c3ee 100644
--- a/IMAGE
+++ b/IMAGE
@@ -1 +1 @@
-quay.io/refgenomics/docker-unicycler:v0.4.7-2
+quay.io/refgenomics/docker-unicycler:v0.4.8-beta
diff --git a/build.sh b/build.sh
old mode 100644
new mode 100755