diff --git a/.gitmodules b/.gitmodules
index 32b5ad87..e3f446df 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -236,3 +236,6 @@
 	url = https://github.com/codex-storage/nim-groth16.git
 	ignore = untracked
 	branch = master
+[submodule "vendor/threading"]
+	path = vendor/threading
+	url = https://github.com/nim-lang/threading.git
diff --git a/vendor/threading b/vendor/threading
new file mode 160000
index 00000000..bcc28499
--- /dev/null
+++ b/vendor/threading
@@ -0,0 +1 @@
+Subproject commit bcc284991ba928d1ed299a81a93b7113cc7de04f