diff --git a/convert/Dockerfile b/convert/Dockerfile
index b63c6e7..971c5dc 100644
--- a/convert/Dockerfile
+++ b/convert/Dockerfile
@@ -1,2 +1,2 @@
 FROM continuumio/miniconda3:4.10.3
-RUN conda install -c ome bioformats2raw==0.3.0 raw2ometiff
+RUN conda install -c ome 'bioformats2raw<0.3.0' 'raw2ometiff<0.3.0'