diff --git a/setup.cfg b/setup.cfg
index 147ddfa9..d5362726 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -33,6 +33,7 @@ install_requires =
     ipython>=8.18.0
     isosurfaces
     fontTools
+    mapbox-earcut
     manimpango>=0.6.0
     matplotlib
     moderngl