diff --git a/requirements-mac-windows.txt b/requirements-mac-windows.txt
index bee152aa3..8da723d09 100644
--- a/requirements-mac-windows.txt
+++ b/requirements-mac-windows.txt
@@ -1,4 +1,4 @@
-ndspy==3.0.0
+ndspy==4.0.0
 skytemple-files==1.3.9
 skytemple-dtef==1.1.5
 skytemple-icons==1.3.2
diff --git a/requirements.txt b/requirements.txt
index 5dedb159e..ff80246ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-ndspy==3.0.0
+ndspy==4.0.0
 git+https://github.com/skytemple/skytemple-files@master#egg=skytemple_files
 git+https://github.com/skytemple/skytemple-dtef@main#egg=skytemple_dtef
 git+https://github.com/skytemple/skytemple-icons@main#egg=skytemple_icons