diff --git a/modules/12_cpp20/src/spaceship_operator.cpp b/modules/12_cpp20/src/spaceship_operator.cpp
index 2ad0d1e..4f8d8a2 100644
--- a/modules/12_cpp20/src/spaceship_operator.cpp
+++ b/modules/12_cpp20/src/spaceship_operator.cpp
@@ -1,15 +1,17 @@
 #include "spaceship_operator.hpp"
 
+#include <algorithm>
+#include <ranges>
+
 namespace cpp20 {
 
 auto sort_versions(std::vector<Version> versions) -> std::vector<Version> {
-    (void)versions;
-    return {};
+    std::ranges::sort(versions);
+    return versions;
 }
 
 auto is_sorted_versions(const std::vector<Version>& versions) -> bool {
-    (void)versions;
-    return false;
+    return std::ranges::is_sorted(versions);
 }
 
 }  // namespace cpp20