diff --git a/Dockerfile b/Dockerfile
index 4debe2f..53af9a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -76,7 +76,7 @@ RUN git clone --recursive https://github.com/ekg/seqwish \
 RUN git clone --recursive https://github.com/pangenome/smoothxg \
     && cd smoothxg \
     && git pull \
-    && git checkout ea362342bc4301f767727467953bafcaf147172b \
+    && git checkout 52a81b7f87a7d7ad2e8bf5dc6e099a0556614f4a \
     && git submodule update --init --recursive \
     && sed -i 's/-msse4.1/-march=sandybridge -Ofast/g' deps/spoa/CMakeLists.txt \
     && sed -i 's/-march=native/-march=sandybridge -Ofast/g' deps/spoa/CMakeLists.txt \