diff --git a/dagster_cloud_post_install.sh b/dagster_cloud_post_install.sh
index a183d35..dde0390 100755
--- a/dagster_cloud_post_install.sh
+++ b/dagster_cloud_post_install.sh
@@ -1 +1,2 @@
-apt install rsync
+apt-get update
+apt-get install rsync