diff --git a/src/depcheck.rs b/src/depcheck.rs
index 4726548..94bec8a 100644
--- a/src/depcheck.rs
+++ b/src/depcheck.rs
@@ -15,6 +15,18 @@ pub struct Dependency {
     pub filename: String,
 }
 
+impl Ord for Dependency {
+    fn cmp(&self, other: &Self) -> std::cmp::Ordering {
+        self.name.cmp(&other.name)
+    }
+}
+
+impl PartialOrd for Dependency {
+    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct DependencyCheckResult {
     pub dependency: Dependency,
diff --git a/src/ui/app.rs b/src/ui/app.rs
index 49e628c..36ef40c 100644
--- a/src/ui/app.rs
+++ b/src/ui/app.rs
@@ -273,6 +273,8 @@ impl SimpleComponent for App {
                 }
                 runners.push(get_build_opencomposite_runner(profile.clone()));
                 if !missing_deps.is_empty() {
+                    missing_deps.sort_unstable();
+                    missing_deps.dedup(); // dedup only works if sorted, hence the above
                     self.dependencies_dialog.set_body(
                         missing_deps
                             .iter()
@@ -462,7 +464,7 @@ impl SimpleComponent for App {
             .sender()
             .emit(MainViewMsg::UpdateProfileNames(
                 model.profiles.iter().map(|p| p.clone().name).collect(),
-                model.config.clone()
+                model.config.clone(),
             ));
 
         let timer_sender = sender.clone();