diff --git a/manifest.toml b/manifest.toml
index 5b24c4a..4b858a7 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -55,7 +55,7 @@ ram.runtime = "300M"
     main.default = 8095
 
     [resources.apt]
-    packages = "postgresql, postgresql-contrib"
+    packages = "postgresql, postgresql-contrib, build-essential"
 
     [resources.database]
     type = "postgresql"