diff --git a/useful/stg312/dependencies.sh b/useful/stg312/dependencies.sh
index ecd7d9c4beca6c58d32d26ea62e92b66139486f6..0d477ec4e9346c0edace7155d73ac290efcc5fe2 100644
--- a/useful/stg312/dependencies.sh
+++ b/useful/stg312/dependencies.sh
@@ -1,3 +1,5 @@
+apt-get update
+apt-get install -y squashfs-tools
 apt-get install -y libjansson-dev
 apt-get install -y libjansson4
 apt-get install -y python_setuptools