diff --git a/scripts/upgrade b/scripts/upgrade
index c92932b..9e6d225 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -81,7 +81,6 @@ ynh_script_progression --message="Upgrading dependencies..." --weight=5
 
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
-ynh_install_extra_app_dependencies --repo="http://http.debian.net/debian buster-backports main" --package="libolm-dev" --key="https://keyserver.ubuntu.com/pks/lookup?search=0x0E98404D386FA1D9&op=get"
 ynh_install_extra_app_dependencies --repo="https://updates.signald.org unstable main" --package="$extra_dependencies" --key="https://updates.signald.org/apt-signing-key.asc"
 
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