diff --git a/manifest.toml b/manifest.toml
index b6bd323..0e754b9 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -102,7 +102,7 @@ ram.runtime = "500M"
     main.url = "/"
 
     [resources.apt]
-    packages = "postgresql elixir erlang-dev erlang-parsetools npm"
+    packages = "postgresql npm"
 
     ##### (this part is optional and corresponds to the legacy ynh_install_extra_app_dependencies helper)