diff --git a/scripts/install b/scripts/install
index 92dd360..142f00c 100755
--- a/scripts/install
+++ b/scripts/install
@@ -109,7 +109,7 @@ ynh_script_progression --message="Installing dependencies..." --weight=97
 
 ynh_install_app_dependencies $pkg_dependencies
 
-ynh_install_extra_app_dependencies --repo="https://updates.signald.org unstable main" --package="signald"
+ynh_install_extra_app_dependencies --repo="https://updates.signald.org unstable main" --package="signald" --key="https://updates.signald.org/apt-signing-key.asc"
 
 #=================================================
 # CREATE A POSTGRESQL DATABASE