diff --git a/.gitmodules b/.gitmodules
index f9291bb9b..721cce3b4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,4 @@
 [submodule "external/supercop"]
 	path = external/supercop
 	url = https://github.com/monero-project/supercop
+	branch = monero
diff --git a/external/supercop b/external/supercop
index 0d6dff953..633500ad8 160000
--- a/external/supercop
+++ b/external/supercop
@@ -1 +1 @@
-Subproject commit 0d6dff95350a20f6fe2bafe1ff6730458dd5ddef
+Subproject commit 633500ad8c8759995049ccd022107d1fa8a1bbc9