diff --git a/Singularity b/Singularity
index d2fffe03f8cd8fcc51b3e8ee278f8ba684a6ee64..2856df158730026213b2b326bcfdc0eff1ea2d47 100644
--- a/Singularity
+++ b/Singularity
@@ -1,6 +1,7 @@
 Bootstrap: docker
 From: continuumio/miniconda3
 
+%post
 # update conda and the OS
 conda update conda && \
 conda upgrade --all -y && \
@@ -17,6 +18,3 @@ eval "$(conda shell.bash hook)"  && \
 conda activate py310-pytorch  && \
 conda list --explicit > /tmp/conda-list--explicit.yml
 
-
-
-