diff --git a/Singularity.v0.0.4 b/Singularity.v0.0.4
new file mode 100644
index 0000000..190eb5b
--- /dev/null
+++ b/Singularity.v0.0.4
@@ -0,0 +1,2 @@
+Bootstrap: docker
+From: khanlab/tar2bids:v0.0.4