diff --git a/task2/quicksort_mt.h b/task2/quicksort_mt.h
new file mode 100644
index 0000000..07d4684
--- /dev/null
+++ b/task2/quicksort_mt.h
@@ -0,0 +1,3 @@
+#include <vector>
+#include <span>
+
diff --git a/third-party/fmt b/third-party/fmt
index 050d41e..045b05d 160000
--- a/third-party/fmt
+++ b/third-party/fmt
@@ -1 +1 @@
-Subproject commit 050d41e85760ea7d21de1d4d9fae16219365aa8e
+Subproject commit 045b05d79e8c827ea815d765e62d92b879184b41