diff --git a/crates/typst-ide/src/complete.rs b/crates/typst-ide/src/complete.rs
index a05be9f83..4e4b89182 100644
--- a/crates/typst-ide/src/complete.rs
+++ b/crates/typst-ide/src/complete.rs
@@ -1098,9 +1098,11 @@ impl<'a> CompletionContext<'a> {
     /// Add completions for all available packages.
     fn package_completions(&mut self, all_versions: bool) {
         let mut packages: Vec<_> = self.world.packages().iter().collect();
-        packages.sort_by_key(|(spec, _)| (&spec.name, Reverse(spec.version)));
+        packages.sort_by_key(|(spec, _)| {
+            (&spec.namespace, &spec.name, Reverse(spec.version))
+        });
         if !all_versions {
-            packages.dedup_by_key(|(spec, _)| &spec.name);
+            packages.dedup_by_key(|(spec, _)| (&spec.namespace, &spec.name));
         }
         for (package, description) in packages {
             self.value_completion(