diff --git a/run_onchange_before_install_main_deps.sh.tmpl b/run_onchange_before_install_main_deps.sh.tmpl
index adfd412..7e22d7e 100644
--- a/run_onchange_before_install_main_deps.sh.tmpl
+++ b/run_onchange_before_install_main_deps.sh.tmpl
@@ -104,6 +104,7 @@ sleep 3
     sudo apt-add-repository ppa:fish-shell/release-3 -y
   {{ end -}}
 fi
+sudo apt update
 {{ end -}}